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List of commercial video games with available source code

For open source video games, see List of open-source video games. For commercial games which were released as freeware without source code, see List of commercial video games released as freeware.

This is a list of commercial video games with available source code. The source code of these commercially developed and distributed video games is available to the public or the games' communities.

In several of the cases listed here, the game's developers released the source code expressly to prevent their work from becoming lost. Such source code is often released under varying (free and non-free, commercial and non-commercial) software licenses to the games' communities or the public; artwork and data are often released under a different license than the source code, as the copyright situation is different or more complicated. The source code may be pushed by the developers to public repositories (e.g. SourceForge or GitHub), or given to selected game community members, or sold with the game, or become available by other means. The game may be written in an interpreted language such as BASIC or Python, and distributed as raw source code without being compiled; early software was often distributed in text form, as in the book BASIC Computer Games. In some cases when a game's source code is not available by other means, the game's community "reconstructs" source code from compiled binary files through time-demanding reverse engineering techniques.

Games with source code available on release

edit
   Title    First release Genre Engine license Content license Original developer Additional information
Akalabeth: World of Doom 1979 Role-playing video game Public domain software Freeware Richard Garriott Richard Garriott distributed the Applesoft BASIC written game originally as source code. Also later Origin Systems offered the source code on their FTP servers.[1][2]
Barkley 2 2021 (cancelled) ARPG Proprietary/CC BY-NC 4.0
(engine/game code) 		CC BY-NC 4.0 Tales of Game's Studios Source code released to the public under no license on 11 June 2021, upon the cancellation of the game.[3]
Barotrauma 2017 Role-playing video game restrictive (only mods)[4] Proprietary Undertow Games / Joonas "Regalis" Rikkonen The game was released in 2017 commercially on Steam by independent developer Undertow Games (Joonas "Regalis" Rikkonen). Source code was released on 4 June 2017 on GitHub under a restrictive mods allowing license.[5][6] His previous game, SCP – Containment Breach, is also available as free and open-source software under CC BY-SA license.
Beneath a Steel Sky Remastered 2009 Adventure game GPLv2+ Proprietary Revolution Software Source code released under the GPL.[7]
Bomb Alley 1983 Turn-based strategy Proprietary Proprietary Strategic Simulations / Gary Grigsby The game used the same engine used by Grigsby's previous Guadalcanal Campaign, which was coded and distributed as uncompiled Applesoft BASIC.[8]
Diamond Trust of London 2012 TBS Public domain software Public domain Jason Rohrer Following a Kickstarter crowdfunding campaign Diamond Trust of London was developed by Jason Rohrer and published by indiePub. On August 28, 2012, it was released for the Nintendo DS. The game has been placed in the public domain, hosted on SourceForge, like most of Rohrer's games.[9]
DONKEY.BAS 1981 Racing game Proprietary Proprietary Bill Gates, Neil Konzen Was written by Microsoft co-founder Bill Gates and Neil Konzen in 1981 and was included with early versions of the PC DOS operating system for the original IBM PC. Similar early BASIC games which were distributed as source code are GORILLA.BAS and NIBBLES.BAS.
Doom Classic 2009 First-person shooter GPLv2+ Proprietary id Software Source code of the iOS port released in November 2009 as it is based on the PrBoom source port.[10][11][12][13]
ELIZA (DOCTOR) 1966 Chatbot / Rogerian psychotherapist simulator Public domain software / CC0 Public domain Joseph Weizenbaum ELIZA is an influential video game predecessor written at the MIT Artificial Intelligence Laboratory by Joseph Weizenbaum between 1964 and 1966.[14] Weizenbaum's original MAD-SLIP implementation was re-written in Lisp by Bernie Cosell.[15][16] A BASIC version appeared in Creative Computing in 1977, written in 1973 by Jeff Shrager.[17] This version, which was ported to many of the earliest personal computers, appears to have been subsequently translated into many other versions in many other languages.[18] On May 28, 2021, the original MAD-Slip source code for ELIZA was discovered and released under the CC0 free-software license with permission of Weizenbaum's estate.[19][20][21]
Frogatto & Friends 2010 Platform Zlib license / CC-BY 3.0 Proprietary Lost Pixel The game was developed open-source on GitHub with an own open-source game engine[22] by several The Battle for Wesnoth developers and released in July 2010 for several platforms. The game was for purchase on the MacOS' app store,[23][24] iPhone App Store[25] and BlackBerry App World[26] as the game assets were kept proprietary.[27]
HyperRogue 2011 Roguelike GPLv2+ Proprietary Zeno Rogue Released in 2011 on GitHub[28] as open-source non-Euclidean roguelike, it was commercialized in 2015 on Steam and other distributors.[29]
Ion Fury 2019 First-person shooter GNU General Public License Proprietary Voidpoint Ion Fury is based on the EDuke32 source port of Duke Nukem 3D, which is under the GNU General Public License. It is possible to compile Ion Fury by downloading the latest version of EDuke32 and compile it with the flag FURY set to 1.[30]
Jagged Alliance 2 Wildfire (now JA2-Stracciatella[31]) 2004 Tactical role-playing game Own license Proprietary iDeal Games Source code was bundled and released with JA2: Wildfire 2004.[32] The JA: Unfinished Business source code became later available too.[33]
Limit Theory 2018 (canceled)/2022 Real-time strategy Unlicense Unlicense Procedural Reality Source code released to the public due to the cancelation of the title.[34][35]
One Hour One Life 2018 Multiplayer survival game Public domain software Public domain Jason Rohrer Released February 2018 and exclusively sold via the developer's webpage.[36] Like the games before, public domain software and hosted on GitHub.[37]
Pitman 1985 Puzzle game Proprietary Proprietary Yutaka Isokawa Originally created in 1985 on a MZ-700 home computer by Yutaka Isokawa. The BASIC listing was published in the August 1985 issue of the magazine "Oh!MZ Publications".[38][39][40] In 1990 the game was commercially converted for the Game Boy. In 2011, the game community restored a faithful as possible version from the available variants.[41]
Pixel Dungeon 2014 roguelike GPLv3+ Freeware/Commercial watabou Available commercially on Steam, while the Android release source code and original itch.io release are available for free.[42]
Receiver 2012 FPS / stealth game own non-commercial conditions Proprietary Wolfire games The source code of the game is available since 2012 on GitHub under non-commercial conditions.[43]
Santa Paravia en Fiumaccio 1978 turn-based strategy Public domain software Public domain George Blank The game by George Blank[44] first appeared in the December 1978 issue of SoftSide magazine as BASIC listing.[45] It was published for sale on tape cassette as a computer game by Instant Software for the Radio Shack TRS-80, the Apple II, TI-99/4A, and PET.[46] It has been translated into many programming languages, such as ANSI C,[47] and has been ported to the Palm Pilot.
Softporn Adventure 1981 Text adventure Proprietary Freeware Chuck Benton / On-Line Systems A comedic, adult-oriented text adventure game produced for the Apple II in 1981. Softporn Adventure was originally written and released for the Apple II as Applesoft BASIC source code in 1981 by programmer Chuck Benton.[48] The game was released by On-Line Systems and became later the base for Leisure Suit Larry 1.[49] The PC version was also released later as freeware by Al Lowe.[50][51][52]
Strife: Veteran Edition (Strife remaster) 2014 FPS GPLv2+ Proprietary Samuel Villarreal / Night Dive Studios In December 2014, Night Dive Studios coordinated the re-release of the 1996 first-person shooter role playing hybrid game Strife as Strife: Veteran Edition, after acquiring rights to the game. Because the game's source code had been lost, a derivative of the Chocolate Doom subproject Chocolate Strife was used as the game's engine, with its original programmers being contracted to do additional coding for the re-release. The source code of Strife: Veteran Edition has been made available under GPLv3 on GitHub by Samuel Villarreal and Night Dive Studios on December 12, 2014.[53] While this was the first source code opened for a Night Dive Studios Studio's game, it was announced more will follow,[54] for instance for System Shock 1.[55]
Quadrilateral Cowboy 2016 Puzzle video game GPLv3+ Proprietary Blendo Games Game source released on August 8, 2016, as it is based on the iodoom3 source port.[56][57]
Telengard 1982 Dungeon crawler, role-playing, roguelike Proprietary Proprietary Avalon Hill / Daniel Lawrence As the game's BASIC source code ("DSKTEL.BAS") was available early on, ports and remaster exist therefore by the community.[58][59]
The Castle Doctrine 2014 MMO Public domain software Public domain Jason Rohrer The Castle Doctrine is developed by Jason Rohrer in a public SourceForge repository and is like most of his creative works in the public domain.[60] The Castle Doctrine was developed as an early access game and is now sold on Steam.
The Oregon Trail 1975 Role-playing video game Public domain (?) Public domain (?) Don Rawitsch / MECC First publicly released in 1975 in BASIC, as was the updated 1978 version which was more widely published in Creative Computing, May/June 1978.[61] Source rediscovered in 2011.[62]
The Prisoner 1980 adventure game Proprietary Proprietary Edu-Ware / David Mullich Developed in BASIC for the Apple II the source code was available with the release. Source code is hosted on GitHub.[63]
Thirty Flights of Loving 2012 Adventure game GPLv2+ Proprietary Blendo Games Game source released in August 2012 as it is based on the KMQuake II source port.[64]
Vulture for Nethack 1987 rogue-like NetHack General Public License Freeware / Commercial NetHack community / Jaakko Peltonen / Clive Crous Falcon's Eye was developed by Jaakko Peltonen as graphical version of NetHack.[65] After 2001 development had ended, Clive Crous continued Falcon's Eye as Vulture's Eye.[65][66] While still being Free and open-source software the game is commercialized via the author's website and Desura. In October 2013 the game was put into the Steam Greenlight process[67] and successfully released on Steam in January 2016.
Wargroove 2019 Turn-based tactics Apache-2.0 Proprietary Chucklefish Halley, the custom engine made for Wargroove,[68] has been available on GitHub to the public at least since 2018.[69]
Wolfenstein 3D Classic Platinum 2009 First-person shooter GPLv2+ Proprietary id Software Source code of the iOS port released in March 2009 as it is based on the Wolfenstein 3-D Redux source port.[70][71][72][11][12][13]
Wrath: Aeon of Ruin 2019 (early access) First-person shooter GPLv2+ Proprietary KillPixel Being released in November 2019 as early access game, based on the DarkPlaces engine, the game's source code was also released on GitHub.[73][74]

Games with later released source code

edit

Games with available source code

edit

The table below with available source code resulted not from official releases by companies or IP holders but from unclear release situations, like lost and found games, and leaks of unclear legality (e.g. by an individual developer on end-of-product-life) or undeleted content.[75]

   Title    Original release Source code found or leaked System Genre Original developer Additional information
360: Three Sixty 1999 2020 PlayStation Racing Smart Dog The PlayStation source code can be found in a dummy file on the disc.[76]
Actua Soccer 96 1996 1996 DOS Sports Gremlin Interactive A demo CD that shipped with a game magazine accidentally contained the C++ source code of the game.[77][78]
Adventure in Time 1981 2016 Atari 8-bit/Apple II Adventure game Phoenix Software In November 2016 the source code for the Atari 8-bit and Apple II versions of Adventure in Time and Birth of the Phoenix were released by Kevin Savetz, along with partial code of The Queen of Phobos for Apple II.[79]
Age of Pirates: Captain Blood 2010 2022 Windows Action-adventure game/Hack and slash 1C: Seawolf Studio Source code of game engine was released on GitHub under GPLv3 on November 28, 2022.[80]
Age of Pirates 2: City of Abandoned Ships 2009 2021 Windows Role-playing game Akella Source code of Storm Engine released on GitHub under GPLv3 in a 2021 and support Sea Dogs: To Each His Own and Age of Pirates 2: City of Abandoned Ships.[81][82]
Airforce Delta 2000 2020 Game Boy Color Flight simulator Climax Studios Source code of the Game Boy Color version was leaked on 4chan in May 2020.[83]
Aliens versus Predator 2 2001 2002 Windows FPS Monolith Productions Source code released on the Monolith Productions FTP server in 2002, then quickly taken down.[84]
Area 51 2005 2024 PlayStation 2, Xbox FPS Midway Studios Austin Final source code for the game was leaked on GitHub by Andrew Sampson on March 7, 2024.[85]
Asteroids 1979 1996 Atari 7800 Arcade Atari Source code of Asteroids in the Atari 7800 version was released in physical form by Atari Sunnyvale on their closure 1996. Together with Ms. Pac-Man, Dig Dug, Robotron: 2084 and eight further games reconstructed by the Atari-Museum and published later.[86][87] Ports for modern FPGAs were made later.[88]
Army Men 1998 2022 Windows Real-time tactics The 3DO Company Source code for the Windows version was uploaded to archive.org in 2022.[89]
Art of Fighting 1992 2014 Neo Geo Fighting game SNK The source code was found on an NEC PC-9821 used for developing Neo Geo titles in 2014.[90][91]
Aztec 1982 2019 Atari 8-bit Action-adventure Datamost In January 2019 Jason Scott uploaded the source code of this game to the Internet Archive.[92]
Battle Konchuuden 1999 2019 PlayStation Role-playing game Jaleco Entertainment A zip file was found within the retail games dummy data, which included the full PlayStation source code to the game.[93]
Beatmania 5th Mix 1999 2000 PlayStation Music video game Konami With the 2000 Japanese PSX game Beatmania Best Hits there was mistakenly included the source code for the 1999 game Beatmania 5th Mix.[94]
The Bilestoad 1982 2019 Apple II Action-adventure Datamost In January 2019 Jason Scott uploaded the source code of this game to the Internet Archive.[92][95]
The Black Cauldron 1985 2022 DOS Adventure Sierra Entertainment During October 25–27, 2022, Jason Scott uploaded to GitHub 13 repositories containing source code for a variety of video games. [96]
Blood 1997 2000–2010, 2023 DOS FPS QStudios / Monolith Productions In 2000, partial source code of an alpha version was leaked. In 2010, the complete alpha source code was leaked.[97] Using the code as reference, a reverse engineered build of the final version was created by Alexander Makarov for source ports around 2017.[98] A later alpha draft from July 1996 was leaked in January 2023 by "x0r_jmp".[99]
Blood & Magic 1996 2021 DOS Real-time strategy Tachyon Studios Source code was uploaded to archive.org in 2021.[100]
B.O.B. / Space Funky B.O.B. 1993 2008 SNES Side-scrolling game Electronic Arts On September 12, 2008, the source code of the SNES version became available as it was found on an eBay-bought hard drive.[101]
Buck Rogers: Planet of Zoom 1983 2018 Atari 8-bit Rail shooter Sega On May 17, 2018, Kevin Savetz uploaded scans of the complete source code of the Atari 8-bit conversion of Buck Rogers: Planet of Zoom donated by Charlie Kulas.[102]
California Watersports 2001 2020 PlayStation Sports Theyer GFX The PlayStation source code was released in 2020 with the permission of developer Mark Theyer.[103]
Captain Comic 1988 2012 NES Platformer Michael Denio In September 2012 the source code of the NES version was offered on eBay.[104][105]
Chicken Run 2000 2011, 2024 Dreamcast, Game Boy Color Stealth game Blitz Games In May 2011, the Sega Dreamcast source code became available, found by a collector on a Dreamcast Dev Kit's harddrive. On 14 January 2024, the Game Boy Color source code was released on archive.org.[106][107]
Chill 1998 2020 PlayStation sports game Silicon Dreams A zip file was found within the retail game's dummy data, which included the full PlayStation 1 source code to the game.
Columns 1990 2010 Game Gear Puzzle game Sega Game Gear version source code was found in 2006 and released in 2010.[108]
Counter-Strike: Global Offensive 2012 2020 Windows first-person shooter Valve A 2017 version of the game's source code was leaked on 4chan in 2020.[109]
Cruis'n USA 1994 2021 Arcade Racing game Midway Games Uploaded by Jason Scott to GitHub on April 6, 2021. [110]
Cybermorph 1993 2014 Atari Jaguar Graphic adventure Attention to Detail Source released in 2014 on atariage.com.[111]
Cyberpunk 2077 2020 2021 Windows Role-playing game CD Projekt Red Source code obtained in a 2021 ransomware attack against CD, and later leaked online.[112]
Dark Chambers 1988 2008 Atari 2600 Dungeon crawl Atari Corporation The source code for the Atari 2600 version of Dark Chambers was uploaded to AtariAge by Curt Vendel on February 9, 2008.[113]
Dark Engine (Thief, Thief II, System Shock 2) 1998 2009–2010 DOS Stealth game Looking Glass Studios In 2009, a complete copy of the Dark Engine source code was discovered in the possession of an ex-Looking Glass Studios employee who was at the time continuing his work for Eidos Interactive.[114] In late April 2010, a user on the Dreamcast Talk forum disassembled the contents of a Dreamcast development kit he had purchased.[115] Later, significant updates for the Dark Engine-based games were published.[116][117][118]
Dark Reign 2 2000 2011 Windows RTS Pandemic Studios Released by a former developer of Pandemic Studios under LGPL.[119][120] Legal status unclear.
Defender 1981 2021 Arcade Scrolling shooter Williams Electronics On 7 January 2021, Jason Scott uploaded to GitHub the source code for the original arcade version of Defender.[121]
Desert Falcon 1987 2008 Atari 2600 Scrolling shooter General Computer Corporation The source code for the Atari 2600 version of Desert Falcon was uploaded to AtariAge by Curt Vendel on 9 February 2008.[122]
Devil May Cry 2 2003 2020 Various Hack and slash Capcom Source code was obtained in a 2020 ransomware attack against Capcom.
Donald Duck's Playground 1986 2022 DOS Adventure Sierra Entertainment During October 25–27, 2022, Jason Scott uploaded to GitHub 13 repositories containing source code for a variety of video games. [96]
Donkey Kong 1981 2008 Atari 8-bit Platform Nintendo In August 2008 the 6502 assembly language source code of Donkey Kong was published at the AtariAge forum by Curt Vendel,[123] and was discussed there by the original developer, Landon Dyer.[124]
Doom 1993 2023, 2024 Macintosh, DOS First-person shooter id Software Doom's Macintosh and DOS source code appeared on eBay in two different lots, and once purchased later found its contents online: the first on September 19, 2023 and the second on March 19, 2024.[125]
Doom 1993 2024 SNES First-person shooter id Software Amiga floppy disks containing the SNES source code were released on archive.org on June 5th, 2024. [126]
Double Dragon II: The Revenge 1989 2013 DOS Beat em up Technōs Japan In 2013 the Internet Archive put the undeleted assembly sources (DRGNSRC.LZH) of the DOS version for download.[127][128]
Dragon Rage 2001 2001 PlayStation 2 Shooter The 3DO Company Source code hidden inside a dummy file in the PlayStation 2 version of Jonny Moseley Mad Trix.[129]
Duke Nukem Forever (alpha version only) 2001 2022 Windows First-person shooter 3D Realms Source code to an alpha version of the game, dated October 26, 2001, was leaked on May 10, 2022[130]
Empire 1977 197? FORTRAN/PDP-10 turn-based wargame Walter Bright At some point, someone broke through the security systems at Caltech, and took a copy of the source code for the FORTRAN/PDP-10 version of the game.[131] This code was continually modified, being passed around from person to person and ported to other system e.g. to VAX/VMS OS.[132]
Eve Online 2003 2011 Windows Space strategy MMO CCP Games On 20 May 2011, someone released the EVE Online source code on a GitHub repository.[133] After the source code was online four days, CCP issued a DMCA take-down request which was followed by GitHub.[134]
Extreme-G 3 2001 2015 PlayStation 2 Racing game Acclaim Cheltenham The source code came into hands of a community member by unknown means around 2015.[135]
Eye of the Beholder II: The Legend of Darkmoon 1991 2021 DOS Role-playing game Westwood Associates The source code was released on archive.org in 2021.[136]
Falcon 4.0 1998 2000 Windows Combat flight simulator MicroProse A 2000 source code leak[137] by a former developer allowed unofficial community development, including upgrades, improved graphics, and bug fixes. In 2013 the source code of one of the community development branches was released to a GitHub repository under a questionable BSD license.[138]
Fall Guys: Ultimate Knockout 2020 2021 Windows Battle royale game Mediatonic Intermediate C++ source code (transpiled from C# with Unity's IL2CPP compiler) accidentally included with a 2021 update.
Fate 2005 2015 Windows Action RPG WildTangent Inadvertently made available when Fate and its sequel Fate: Undiscovered Realms were offered through a May 2015 Humble Bundle. The download link provided to purchasers for the DRM-Free copy lead to an apparently current dump of the source code. This was available for several days before it was corrected.[139]
Far Cry 2004 2023 Various First-person shooter Crytek The source code was released on archive.org in 2023.[140]
The F.A. Premier League Stars 2000 2016 Windows Sports Electronic Arts Source code found in a Windows prototype build.[141]
FIFA 97 1996 1996 Windows Sports Electronic Arts Around 1996 Electronic Arts accidentally put the game's source code on a demo disc.[142][143]
Forsaken 1998 2007 Windows 6DOF shooter Probe Entertainment In 2007, nine years after the first release, the source code became available to the public.[144] The game's community took up the game and kept updating and porting the game via a GitHub repository under a GPL license.[145][146]
Friday the 13th: The Game 2017 2021 Various Survival horror IIIFonic, Black Tower Studios Partial Unreal Engine project leaked via Google Drive on 2 December 2021.
Frogger (1997) 1997 2023 PlayStation, Windows Action SCE Studio Cambridge PlayStation and Windows source code leaked on 4chan on 27 September 2023.[147]
Frogger (Game.com) 1999 2011 Game.com Action Hasbro Interactive Source code included with Game.com official emulator.[148]
Gears of War 2006 Unknown Xbox 360 Windows Third-person shooter Epic Games While the exact date and source of the leak isn't commonly known, There are two versions of leaked source code for gears of war 1, both of which contain a playable build while only one contains uncompiled map sources in addition to the build and source code. The first version is just a 2006 English build with xbox 360 controller icons in-place of pc one's. And the other version is a 2007 Chinese localized build with regular pc mouse and keyboard icons.
Glover 1999 2024 PlayStation Platformer Blitz Games On 14 January 2024, the PlayStation source code and numerous builds were uploaded by Codebound to the Internet Archive.[149]
Grand Theft Auto V 2013 2023 Windows Action-adventure Rockstar North Source code obtained as part of the September 2022 Grand Theft Auto VI leaks. Released publicly on 25 December 2023, as a form of protest against the sentencing of the perpetrator of the leaks.[150][151]
GunZ: The Duel 2005 2011 Windows Third-person shooter MAIET Entertainment In 2011 the source code of GunZ 1.5 became available online.[152]
Gwent: The Witcher Card Game 2018 2021 Windows Collectible card game CD Projekt Red Source code obtained in a 2021 ransomware attack against CD Projekt Red, and was leaked to 4chan on 9 February 2021.[153]
Hägar the Horrible 1992 2021 Commodore 64 Platform Kingsoft Source code for the Commodore 64 version was uploaded to archive.org in 2021.[154]
Half-Life 2 2004 2003 Windows FPS Valve An alpha version of Half-Life 2's source code was leaked in 2003, a year before the game's release.[155] A complete snapshot of the game from 2017 also became public in the 2020 Source Engine leak.[156]
Halo Wars 2009 2021 Xbox 360 RTS Ensemble Studios Source code for a prototype version dated 3 months before the games release was leaked in 2021.[157]
Hard Drivin' 1989 2024 Atari ST Sim racing Tengen On January 25, 2024, the source code for the Atari ST conversion of Hard Drivin', the Sega Genesis conversion of RoadBlasters and the Sega Genesis version of R.B.I. Baseball '94 was uploaded to the Internet Archive.[158]
Harry Potter and the Chamber of Secrets 2002 2020 Windows Action-adventure KnowWonder Source code from a prototype version was leaked in 2020.[159]
Heavenly Sword 2007 2016 PlayStation 3 Action-adventure Ninja Theory Source code was posted online in 2016, and later partially reuploaded to GitHub in 2019.[160]
Hexen: Beyond Heretic 1995 2024 DOS First-person shooter id Software On a CD-ROM containing Doom's Macintosh source code that appeared on eBay was also some of the original DOS source code for Hexen. Once purchased, it later found its contents online on March 19, 2024.[125]
Hexen: Beyond Heretic 1995 2024 Macintosh First-person shooter id Software A CD-ROM containing Hexen's Macintosh source code was sold on ebay on Oct 6, 2024. Its contents have not yet been found online.
Home Alone 2: Lost in New York 1992 2016 NES Action game Imagineering Game source released of the NES game in 2016 by Frank Cifaldi after finding it on an old hard drive.[161][162]
Hulk 2003 2021 Various Action Radical Entertainment Source code released on 4chan on 22 August 2021.
Jimmy Neutron vs. Jimmy Negatron 2002 2022 Game Boy Advance Action Human Soft Source code, artwork and builds from the Game Boy Advance version were anonymously leaked on 4chan on 8 November 2022. Among these are various character models and assets used in the production of the film Jimmy Neutron: Boy Genius.[163]
Joust 1982 2021 Arcade Action game Williams Electronics On 7 January 2021, Jason Scott uploaded to GitHub the source code for the original arcade version of Joust.[164]
Kelly Slater's Pro Surfer 2002 2021 PlayStation 2 Sports game Treyarch Source code found in a ZIP file in a prototype version of the PlayStation 2 version.[165]
Killer7 2005 2016 GameCube Action-adventure game Grasshopper Manufacture Sources and assets from the GameCube game were found in October 2016 on an open webserver.[166]
King's Quest III DOS Adventure Sierra Entertainment During October 25–27, 2022, Jason Scott uploaded to GitHub 13 repositories containing source code for a variety of video games.[96]
Lethal Enforcers I & II 1997 1997 PlayStation Rail shooter Konami Source code hidden inside a dummy file.[167]
Leisure Suit Larry in the Land of the Lounge Lizards 1987 2022 DOS Adventure Sierra Entertainment During October 25–27, 2022, Jason Scott uploaded to GitHub 13 repositories containing source code for a variety of video games. Both the original and the VGA remake were included.[96]
Leisure Suit Larry Goes Looking for Love (in Several Wrong Places) 1988 2022 DOS Adventure Sierra Entertainment During October 25–27, 2022, Jason Scott uploaded to GitHub 13 repositories containing source code for a variety of video games. Both the original and the VGA remake were included.[96]
Leisure Suit Larry III: Passionate Patti in Pursuit of the Pulsating Pectorals 1989 2022 DOS Adventure Sierra Entertainment During October 25–27, 2022, Jason Scott uploaded to GitHub 13 repositories containing source code for a variety of video games. [96]
Leisure Suit Larry 5: Passionate Patti Does a Little Undercover Work 1991 2022 DOS Adventure Sierra Entertainment During October 25–27, 2022, Jason Scott uploaded to GitHub 13 repositories containing source code for a variety of video games. [96]
Lineage II 2003 2003 Windows MMORPG NCSOFT In 2003 a Chinese Hacker acquired the Lineage II source code, and sold it to someone who set up alternative servers. Shutdown by FBI in 2007.[168][169]
Mad Planets 1983 2021 Arcade Multidirectional shooter Gottlieb Uploaded to the Internet Archive by Jason Scott on 20 May 2021.[170]
Manic Miner 2002 2022 Game Boy Advance Platformer Jester Interactive Released on 20 February 2022, by Forest of Illusion.[171]
Metal Arms: Glitch in the System 2003 2019 GameCube Third-person shooter Sierra Entertainment Uploaded to archive.org in 2019.[172]
Metin 2 2004 ? Windows MMORPG Ymir Entertainment The source of the leak is unknown for certain, it is said that an ex employee at Ymir Entertainment leaked the source code for revenge after he was fired.
Microsoft Entertainment Pack 1996 2004 Windows Casual game Microsoft In the copies of Windows NT 4.0 and Windows 2000 source code which leaked back in 2004, there are 32-bit versions of Cruel, Golf, Pegged, Reversi, Snake (Rattler Race), Taipei and TicTactics.[173]
The Misadventures of Tron Bonne 1999 2020 PlayStation Action-adventure Capcom Source code was obtained in a 2020 ransomware attack against Capcom.
MoHo 2000 2022 Dreamcast Action Lost Toys Source code to the Dreamcast version was found and released in 2022.[174]
Monopoly 2000 2018 Windows Board Artech Studios The source code for the Microsoft Windows version of the 2000 video game Monopoly was leaked in August 2018.[175][176]
Mortal Kombat II 1993 2022 Arcade Fighting Midway Games During October 25–27, 2022, Jason Scott uploaded to GitHub 13 repositories containing source code for a variety of video games, including the arcade version of Mortal Kombat II.[96]
Mortal Kombat 3 1994 2023 Arcade Fighting Midway Games In December 2023, Jason Scott uploaded the arcade source of Mortal Kombat 3.
Mortal Kombat Trilogy 1996 2018 Various Fighting Midway Games Game source code for the Nintendo 64 version was leaked anonymously on 4chan, alongside the Windows, PS1, and Arcade source of Mortal Kombat 3.[177][178]
Monsters, Inc. 2001 2019 PlayStation 2 Platform Kodiak Interactive Source code and artwork for the PlayStation 2 version was uploaded to archive.org in 2019.[179]
Mr Nutz 2 1994 2008 Amiga Platformer Ocean Software Amiga game, source code prototype associated with Peter Thierolf.[180][181]
Mr. Robot and His Robot Factory 1983 2019 Apple II Platform Datamost In January 2019 Jason Scott uploaded the source code of this game to the Internet Archive.[92]
The Muppets on the Go! 1996 2017 Sega Pico Educational Climax Studios Source code found on a backup disc, among art assets and more.[182]
Myst 1995 2014 Atari Jaguar Graphic adventure Cyan Worlds Source released in 2014 on atariage.com.[111]
Narc 1988 2021 Arcade Run and gun Williams Electronics Uploaded by Jason Scott to GitHub on April 6, 2021. [110]
NBA Jam 1993 2021 Arcade Sports video game Midway Games On April 6 2021, Jason Scott uploaded to GitHub the source code for the original arcade version of NBA Jam and NBA Jam: Tournament Edition.[110]
NBA Jam Extreme 1996 2017 Various Sports game Sculptured Software In February 2017 the source code was discovered on an archival CD liquidated by Acclaim Entertainment during their bankruptcy sale.[183] It was subsequently sold on eBay for $500.
NBA Jam 2001 2000 2023 Game Boy Color Sports game DC Studios On November 7, 2023, the source code and numerous builds were uploaded by Codebound to the Internet Archive.[184]
NBA Hangtime 1996 2021 Arcade Sports game Midway Games Uploaded by Jason Scott to GitHub on April 6, 2021. [110]
NFL Blitz 2000 1999 2023 Arcade Sports game Midway Games During October 18–19, 2023, Jason Scott uploaded to GitHub 7 repositories containing source code for a variety of video games and in-house development utilities, including the arcade version of NFL Blitz 2000 and San Francisco Rush: The Rock.[185]
NHL Hockey 1991 2024 Genesis Sports game Park Place Productions On February 16, 2024, the source code was uploaded by Codebound to the Internet Archive.[186]
NHL Open Ice 1996 2021 Arcade Sports game Midway Games Uploaded by Jason Scott to GitHub on April 6, 2021. [110]
Nickelodeon Party Blast 2002 2020 Various Party game Data Design Interactive Found a developer's HDD in September 2020, along with many other Data Design Interactive games.[187]
Ninety-Nine Nights 2006 2021 Xbox 360 Hack and Slash Q Entertainment Source code from an unknown point of development was leaked in 2021, later uploaded to archive.org.[188]
Ninja Hattori-kun 1986 2019 Famicom Platformer Hudson Soft Uploaded to GitHub on December 24, 2019.[189]
Various Nintendo games 1990-2017 2020-2021 Various Various Various Throughout 2020, the source code for several games by Nintendo (as well as console firmware) was leaked by anonymous users on 4chan. These include the first four (and seventh) generations of the Pokémon series and the firmware for the Nintendo 64, GameCube, and 3DS. In 2024, Game Freak was breached for more Pokemon games. See Nintendo data leak for more information.
Oni 2001 2021 Various Third-person shooter Bungie On April 29, 2021, an unknown source uploaded the source code to the Internet Archive.[190]
Outlaw Golf 2002 2021 Various Golf Hypnotix On January 2, 2021, Forest of Illusion uploaded a .zip file recovered from a hard drive of Data Design Interactive containing the entire source code for the Windows, Xbox and GameCube versions of the game.[191]
Pac-Man 1982 2019 Atari 8-bit Maze Roklan Corp. In August 2019 the source code for the Atari 8-bit version was released by Kevin Savetz.[192][193]
Pachinko Dream 1996 1996 PlayStation Pachinko Konami Source code found inside a dummy file.[194]
Pesterminator: The Western Exterminator 1990 2019 NES side-scrolling Color Dreams In November 2019 the NES source code was uploaded to the Internet Archive.[195]
Pinball Fantasies 1994 2020 DOS Pinball FrontLine Design On 20 December 2020, Jason Scott uploaded to GitHub the source code for the DOS port of Pinball Fantasies.[196]
Pocket Music 2002 2022 Game Boy Color Music Jester Interactive Released on 23 February 2022, by Forest of Illusion.[197]
Pole Position 1983 2009 Atari 2600 Racing General Computer Corporation On 20 May 2009, Curt Vendel released the source code of the Atari 2600 conversion of Pole Position.[198]
Police Quest: In Pursuit of the Death Angel 1987 2022 DOS Adventure Sierra Entertainment During October 25–27, 2022, Jason Scott uploaded to GitHub 13 repositories containing source code for a variety of video games.[96]
Postal III 2011 2020 Windows First-person shooter Running with Scissors Leaked onto 4chan in June 2020, and contains pre-release Half-Life 2 and Team Fortress 2 content.[199]
Ragnarok Online 2 2007 2014 Windows MMORPG Gravity Posted on a forum found through unknown means.[200]
Raid 2020 1989 2019 Atari 2600 Side-scrolling action game Color Dreams Source code was found on a floppy disk and uploaded to archive.org in 2019.[201]
Rat Attack! 1998 2024 PlayStation Puzzle Pure Entertainment PlayStation source code obtained from a developer.[202]
Rayman Raving Rabbids (prototype only) 2006 2022 Windows Party game Ubisoft Source code of an alpha platformer build of Rayman Raving Rabbids was obtained through unknown means and released on December 12, 2022. It also contains the tools and the source code from Ubisoft's Jade Engine.
Rayman 2: The Great Escape 1999 2022 Nintendo DS Platformer Ubisoft Source code for Nintendo DS version was obtained through unknown means and released on February 3, 2022.[203] It also contains assets from the Nintendo 64 version of Donald Duck: Goin' Quackers.[204]
Re-Volt 1999 200? Windows Racing game Acclaim Studios London Members of the fan-base have acquired the source code of the game around 2004, which was leaked from an anonymous developer who worked on the Xbox Live port.[205][206] The game community works since then on fan patches and source ports to new platforms like Linux, MacOS and OpenPandora.[207][208][209]
Resident Evil: The Umbrella Chronicles 2007 2020 Wii, PlayStation 3 Rail shooter Capcom Source code was obtained in a 2020 ransomware attack against Capcom.
Revolution X 1994 2021 Arcade Shooting gallery Midway Games Uploaded by Jason Scott to GitHub on April 6, 2021. [110]
Robotron: 2084 1982 2021 Arcade Multidirectional shooter Vid Kidz On 7 January 2021, Jason Scott uploaded to GitHub the source code for the original arcade version of Robotron: 2084.[210]
Rolling Thunder 1987 2016 Amiga side-scrolling action game Tiertex Design Studios The Amiga version became available on a community forum.[211]
San Francisco Rush: The Rock 2023 Arcade Midway Games During October 18–19, 2023, Jason Scott uploaded to GitHub 7 repositories containing source code for a variety of video games and in-house development utilities, including the arcade version of NFL Blitz 2000 and San Francisco Rush: The Rock (an updated version of San Francisco Rush: Extreme Racing).[185]
Silent Hill: Downpour 2012 2024 PlayStation 3, Xbox 360 Survival horror Vatra Games Source code was uploaded to Internet Archive on September 3rd, 2024.[212]
The Simpsons: Hit & Run 2003 2021 Various Racing Radical Entertainment Source code obtained from a developer and released on 4chan on August 21, 2021.
Sinistar 1983 2021 Arcade Multidirectional shooter Williams Electronics Uploaded by Jason Scott to GitHub on April 6, 2021. [110]
Smash TV 1990 2021 Arcade [[ Multidirectional shooter]] Williams Electronics Uploaded by Jason Scott to GitHub on April 6, 2021. [110]
Sonic the Hedgehog 2 1992 2006 Genesis Platformer Sega Technical Institute In 2006, portions of the source code were found within the data of an early 1992 prototype build shown in Nick Arcade, as well as symbol tables.[213]
Sonic Unleashed (mobile) 2008 2017 J2ME Platformer Gameloft The J2ME mobile version was uploaded to GitHub in 2017, albeit taken down in 2020.[214]
Speedball 2: Brutal Deluxe 1990 2022 PocketPC / Dreamcast Sports game The Bitmap Brothers Source code to the PocketPC and an unreleased Dreamcast port was found and released in 2022.[215]
Spider-Man 2 2023 2023 PlayStation 5 Action-adventure Insomniac Games Source code leaked as part of a ransomware attack on Insomniac Games in December 2023.[216]
Spirit of Speed 1937 2000 2022 Dreamcast Racing game Broadsword Interactive Source code to the Dreamcast version was found and released in 2022.[217]
SpongeBob SquarePants: SuperSponge 2001 2016 PlayStation, Game Boy Advance Platformer Climax Development The PlayStation version's development repository was released on GitHub in 2018, converted from an old Microsoft Visual SourceSafe repository.[218] Curiously, it was discovered that the game contained code from the Linux kernel (specifically the vsprintf function, presumably used for debugging), and therefore violates the GNU General Public License. Source code from a very early build of the GBA version was also found.[219]
S.T.A.L.K.E.R.: Clear Sky (X-Ray Engine 1.5.10) 2008 2014 Windows FPS GSC Game World In August 2014 the source code for the game's X-Ray Engine 1.5.10 became available on GitHub under a non-open-source license.[220] The successor's engine, X-ray 1.6.02, became available too.[221][222] As of October 2019 the xray-16 engine community fork, "OpenXRay", achieved compiling state and support for the two games Call of Pripyat and Clear Sky with build 558.[223]
Starbound 2016 2023 Windows Sandbox game Chucklefish Leaked onto 4chan on 18 June 2023.
Stargate 1981 2021 Arcade Scrolling shooter Vid Kidz On 7 January 2021, Jason Scott uploaded to GitHub the source code for the original arcade version of Stargate.[224]
Star Trek: New Worlds 2000 2021 Windows Real-time strategy Binary Asylum Source code from a prototype build was uploaded to archive.org in 2021.[225]
Star Wars 1983 2021 Arcade Rail shooter Atari, Inc. During 13–16 October 2021, Jason Scott uploaded to GitHub 78 repositories containing source code to several Atari arcade games.[226] Notable games include Tank 8/Ultra Tank, Quiz Show, Dominos, Sprint 2, Night Driver, Starship 1, Drag Race, Triple Hunt, Super Bug, Canyon Bomber, Avalanche, Super Breakout, Destroyer, Fire Truck, Tournament Table, Video Pinball, Football, Indy 4, Asteroids, Lunar Lander, Sky Diver, Missile Command, Red Baron, Asteroids Deluxe, Centipede, Warlords, Tempest, Battlezone, Space Duel, Gravitar, Liberator, Millipede, Quantum, Food Fight, Black Widow and Crystal Castles.
Star Wars Galaxies 2003 2014 Windows MMO Sony Online Entertainment In 2013, a former Sony Online Entertainment employee leaked a copy of the 2010 production source code for the Star Wars Galaxies client, server, 3rd party libraries and development tools to a group of former players. The code was later leaked beyond its intended recipients and made available online.[227] Live, free to play public servers and public development groups have since come into existence. The source code is centrally maintained by the open-source project SWG Source and is available on GitHub.
Striker '96 1996 2022 PlayStation Sports Rage Software Source code found on a Dreamcast development kit.[228]
Super 3D Noah's Ark 1994 2018 SNES FPS Wisdom Tree In November 2018 the source code for SNES version was bought on eBay and released to the public.[229]
Swashbuckler 1982 2019 Apple II Fighting Datamost In January 2019 Jason Scott uploaded the source code of this game to the Internet Archive.[92]
Team Fortress 2 2007 2012 Windows first-person shooter Valve A 2008 version of the game's source code was leaked alongside several other Orange Box games in 2012.[109] In 2020, an additional 2017 build of the game was leaked.[230]
Tempest 2000 1994 2008 Atari Jaguar tube shooter Llamasoft On 24 August 2008, the source code of Tempest 2000 was released by the defunct Jaguar Sector II website under a CD compilation for Windows titled Jaguar Source Code Collection.[231][232]
Three Dirty Dwarves 1996 2016 Sega Saturn Beat 'em up SegaSoft Source code found in a prototype build.[233]
Toontown Online 2003 2020 Windows MMO Disney Interactive In 2020, a GitHub user named "satire6" uploaded two repositories containing full source code and assets from a 2010 build of the game.[234][235]
Tomb Raider II 1997 2021 PlayStation Action-adventure game Core Design Source code was released on archive.org in 2021.[236]
Tony Hawk's Underground 2003 2016 Various Sports game Neversoft The game's C++ source code was leaked in February 2016 to GitHub.[237]
Total Carnage 1992 2021 Arcade Multidirectional shooter Midway Games Uploaded by Jason Scott to GitHub on April 6, 2021. [110]
Trog 1990 2021 Arcade Racing game Midway Games Uploaded by Jason Scott to GitHub on April 6, 2021. [110]
Turrican III 1994 2008 Amiga Run and gun Factor 5 Amiga game, source code prototype associated with Peter Thierolf.[181]
Turok: Dinosaur Hunter 1997 2017 Nintendo 64 First-person shooter Iguana Entertainment / Acclaim Entertainment In February 2017 the source code of the N64 version was sold on eBay for $2551.99 on a SGI Silicon Graphics Indy development machine which came from the Acclaim Entertainment liquidation. This source code was later released August 26, 2018, then reuploaded, non-encrypted to 4chan the following day.[238][239][240]
Trespasser 1998 200? Windows Action-adventure, FPS DreamWorks Interactive The fan community got the original source code into hand by unknown means[241] and created modifications and unofficial patches with it,[242][243] the latest DirectX 9 port from 2016 and the development ongoing.[244]
Ultima IX: Ascension 1999 2014 Windows Role-playing video game Origin Systems In November 2014 the Ultima Codex Community was able to acquire the Ultima 9 source code from a former developer for offline archival to prevent permanent loss.[245]
Ultimate Mortal Kombat 3 1994 2009 PlayStation Beat'em up Midway Games The source code and artwork from the PSX version were recovered from floppies in 2009.[246][247]
Unreal Championship 2 2005 2020 Windows First-person shooter Epic Games Leaked to 4chan on July 29, 2020.
Up'n Down 1984 2018 Atari 8-bit Racing, maze Sega On May 17, 2018, Kevin Savetz uploaded scans of the complete source code of the Atari 8-bit conversion of Up'n Down donated by Charlie Kulas.[248]
Urban Assault 1998 2016 Windows Real-time strategy TerraTools Found on eBay.[249]
Warcraft II: The Dark Saga 1997 2020 PlayStation Real-time strategy Blizzard Entertainment Source code for the PlayStation version was uploaded to archive.org.[250]
Various WayForward games 200?-201? 2024 Various Various WayForward An anonymous seller obtained and sold the source code from many of WayForward's games, including A Boy and His Blob, Adventure Time: Hey Ice King! Why'd You Steal Our Garbage?!!, American Dragon: Jake Long - Rise of the Huntsclan, Barbie and the Magic of Pegasus, DuckTales: Remastered, Mighty Milky Way, Ping Pals, Sigma Star Saga, SpongeBob SquarePants: Creature from the Krusty Krab, SpongeBob SquarePants: Lights, Camera, Pants!, SpongeBob SquigglePants, The SpongeBob SquarePants Movie, Unfabulous, numerous LeapFrog Didj games and some unreleased titles.[251]
Wipeout 1995 2022 PlayStation, Windows Racing Psygnosis Source code for the PlayStation and Windows versions uploaded by Forest of Illusion.[252]
Wipeout Pulse 2009 2018 PlayStation 2 Racing game Sony The PlayStation 2 version contains source code hidden inside a dummy file.[253] The source code is not for the game itself.
Wing Commander series 1990 2011 Various Space simulator Origin Systems The long lost source code of Wing Commander I was given to the fan-community in August 2011 by a former developer for the purpose of long-time preservation.[254] Later most other parts of the series followed.[255][256]
William Shatner's TekWar 1995 2021 Windows First-person shooter Capstone Software Released on archive.org in 2021.[257]
WWF WrestleMania: The Arcade Game 1995 2021 Arcade Racing game Midway Games Uploaded by Jason Scott to GitHub on April 6, 2021. [110]
The Witcher 3 2015 2024 Windows Role-playing game CD Projekt Red In 2021 source code for the original release & an early version of the "next generation" update was sold for ransom online, with a passworded archive made available publicly. The group responsible later resurfaced in 2024 and released the password for the archive.[258]
Wizardry III: Legacy of Llylgamyn 1983 2021 Various Role-playing game Sir-Tech The source code (for Apple) was released on archive.org in 2021.[259]
Xbox system software 2001 2020 Xbox Video game console operating system Microsoft In May 2020, the Xbox operating system source code was leaked.
Zork and other Infocom games 1977 2008 Various Adventure game Infocom In 2008 a back-up with the source code of all Infocom's video games appeared from an anonymous Infocom source and was archived by the Internet Archive's Jason Scott.[260][261][262] On May 5, 2020, the Massachusetts Institute of Technology uploaded to GitHub the source code for 1977–1978 versions and 1977/1989 binaries of Zork.[263] On 12 February 2018, the source code for the original Z-machine interpreter for TRS-80 Color Computer by Infocom was leaked by Brian Moriarty.[264] On November 16, 2023, the source code for the original Infocom intepreter for a wide variety of platforms was uploaded to GitHub. On November 19, the source code for the IBM PC interpreter was uploaded by David Fillmore.[265]

Games with reconstructed source code

edit
See also: List of game engine recreations

Once games, or software in general, become an obsolete product for a company, the tools and source code required to re-create the game are often lost or even actively destroyed and deleted.[266][267][268][269][270][271][272] For instance, with the closure of Atari in Sunnyvale, California, in 1996, the original source codes of several milestones of video game history such as Asteroids and Centipede were all thrown out as trash.[273][274]

When much time and manual work is invested, it is still possible to recover or restore a source code variant which replicates the program's functions accurately from the binary program. Techniques used to accomplish this are decompiling, disassembling, and reverse engineering the binary executable. This approach typically does not result in the exact original source code but rather a divergent version, as a binary program does not contain all of the information originally carried in the source code. For example, comments and function names cannot be restored if the program was compiled without additional debug information.

Using the techniques listed above within a "bottom-up" development methodology process, the re-created source-code of a game is able to replicate the behavior of the original game exactly, often being "clock-cycle accurate", and/or "pixel-per-pixel accurate". This approach is in contrast to that used by game engine recreations, which are often made using a "top-down" development methodology, and which can result in duplicating the general features provided by a game engine, but not necessarily an accurate representation of the original game.

   Title    Original release Source-code reconstructed Genre Original developer Additional information
Albion 1996 (DOS) 2011 Adventure game Blue Byte In 2011, via static recompilation from the original x86 binary executable a port for the ARM architecture of the Pandora handheld was created by fans.[275][276] The community still updates this recompiled version and released also Windows and Linux builds in 2015,[277] source code available on GitHub under MIT.[278]
Another World 1991 2011 Platform game Delphine Software International In 2011, Fabien Sanglard analysed Another World by reverse engineering and reconstructed, based on an earlier approach, a complete C++ source code variant of the internal virtual machine.[279][280]
Bagman 1982 2010 Arcade game Valadon Automation In 2010, the French programmer Jean-François Fabre reconstructed C source code from the game to port it to modern platforms.[281]
Banjo-Kazooie 1998 (Nintendo 64) 2024 Platform game Rare Decompiled in 2024 with code released on gitlab.com.[282]
Bermuda Syndrome 1995 (Windows) 2007 Adventure game Century Interactive After the end of support for the game, Gregory Montoir reverse engineered in 2007 the game engine and wrote a substitute which allowed the porting of the game to modern platforms,[283][284] like the OpenPandora handheld.[285]
Boulder Dash 1984 (C64) 2016 Arcade game First Star Software The C64 version was bit accurate reverse engineered by enthusiasts in month long work in 2016.[286][287] The group reverse engineered several more games also from this period, like The Castles of Dr. Creep 3, Miner 2049er, Lode Runner, Manic Miner and Beach Head.[288]
The Castles of Dr. Creep 1984 (C64) 2010 Platform game Edward R. Hobbs Robert Crossfield worked on a faithful engine for the game since 2010.[289] The remake/reconstructed version got released for PC on Steam by Edward R. Hobbs & Robert Crossfield in September 2016.
Cannon Fodder 1993 (DOS) 2015 top-down shooter Sensible Software In December 2015, Robert Crossfield released version 1.0 of the reverse engineered DOS CD Cannon Fodder version, under the name "OpenFodder" on GitHub under GPL.[290][291]
Chasm: The Rift 1997 (DOS) 2016 First-person shooter Action Forms Around 2016 a reverse engineered version became available on GitHub.[292]
Citadel 1985 (BBC) 2018 Action-adventure game Superior Software Buildable, reverse-engineered assembler source for the BBC Microcomputer Model B version of the game was released on the Stardot forums in October 2018, by a user known as Diminished.[293]
Commander Keen 4-6 1991 (DOS) 2021 Sidecrolling shooter id Software Between 2019 and 2021 K1n9_Duk3 recreated the source code of Commander Keen 4, 5 and 6, based on the already released source code of Catacomb 3-D, Wolfenstein 3-D and Keen Dreams. When compiled with the Borland C++ v3.0 compiler, compressing the newly created executables with LZEXE 100% identical copies of the original v1.4 executables are achievable.

Before that, in 2017 a pixel-accuracy aiming engine re-implementation, based on several disassembly/decompilation efforts, became available by David Gow.[294] C99 source code is hosted on GitHub under GPLv2. Originally only meant for Keen 5, it now supports Keen 4, 5 and 6.[295]

Diablo 1996 (Windows) 2018 Action RPG Blizzard Entertainment In 2018 a reverse engineered version was released, based on previously accidentally released debug information and builds by Diablo developers.[296] Builds and compiles successfully for modern OSes.
Diablo II 2000 (Windows) 2015 Action RPG Blizzard Entertainment In 2015, an unofficial port for the ARM architecture based Pandora handheld became available by static recompilation and reverse engineering of the original x86 version.[297][298]
Digger 1983 1998 Arcade Windmill Software Reverse engineered by Andrew Jenner in 1998, called Digger Remastered, released as GPL and ported for many platforms.[299]
Driver 2 2000 (PS) 2020 Driving Reflections Interactive In 2020 a reverse engineered version was released, based on previously accidentally released debug symbols.[300]
Duke Nukem II 1993 (DOS) 2022 Platform game Apogee Software In 2022 reconstructed C code was released.
Dune II 1992 (Windows) 2009 Real-time strategy game Westwood Studios In 2009 a group started reverse engineering Dune II under the name OpenDUNE.[301] The resulting code was released under GPLv2 and ported to other platforms like the Pandora.[302]
Dungeon Keeper 1997 2005 realtime dungeon simulator Bullfrog Productions Tomasz Lis reverse engineered a version called KeeperFX, the resulting source code is released as GPLv3.[303] After developer Lis stopped working on KeeperFX around 2016 the community took up the work in 2019 and continues the project as KeeperFX Unofficial.[304]
Dungeon Master 1989 2001 Dungeon crawler FTL Games In 2001, Dungeon Master (and its successor CSB) was released by Paul R. Stevens in a portable reverse engineered version called CSBwin. CSBwin was reverse engineered from the game's Atari assembler code to a pure C version in months of work.[305][306] In 2014 Christophe Fontanel released another reverse engineering project which tries to recreate all existing versions.[307][308]
E.T. the Extra-Terrestrial 1982 (Atari) 2006 Arcade Atari In 2006, decompiled by Dennis Debro.[309][310][311] Following that, several unofficial fixes for the game were released by a fan site.[312]
Elite 1984 (BBC Micro) 2003 Space trading game Ian Bell, David Braben Christian Pinder created Elite: The New Kind as faithful PC version by reverse-engineering platform-neutral C code from the original BBC Micro version of Elite. This version was withdrawn from the main distribution at David Braben's request in 2003.[313] In September 2014, on Elite's 30th birthday, Ian Bell blessed Elite: The New Kind and re-released it for free on his website.[314][315][316] Source code of the 1.0 version is available on a GitHub repository.[317]
Escape from Colditz 1991 (Amiga) 2009 Action-adventure game Mike Halsall, John Law / Digital Magic Software. Around 2009 some developers reconstructed from the Amiga version a C version under GPLv3.[318][319] Ported then to many systems.
Exile 1988 (BBC Micro) 2012 Action-adventure game Peter Irvin, Jeremy Smith Around 2012 the assembly source code of the BBC Micro version was reconstructed and commented.[320] Later author Peter Irvin blessed also the non-commercial redistribution of the Amiga version of the game.[321]
Freeway 1981 (Atari) 19?? Arcade game Activision Decompiled and commented by Rebecca Heineman.[311]
Football Manager 1982 2001 Sports game, Business simulation game Kevin Toms In 2001 Paul Robson developed an accurate remake of the original game by reverse engineering in C.[322] The remake has since been ported to the GP2X[323] and Google Android.
Frontier: Elite 2 1993 2006 Space trading game Frontier Developments Reverse engineered to C by Tom Morton until 2006.[324]
Frontier: First Encounters (Elite III) 1995 2005 Space trading game Frontier Developments Frontier Developments announced in 2000 that FFE would be open-sourced under a GPL-similar license,[325] but this never happened.[326] In response, in October 2005 the game was reverse engineered by John Jordan and builds for modern operation systems were provided.[327] Updated until December 1, 2009, and later continued by other programmers with builds like "FFE_D3D".[328]
Final Fantasy VIII 1999 2019 Role-Playing Square Enix In 2019, Marcin Gomulak rewrote the engine from scratch in C#.
Grand Theft Auto III 2001 (Windows) 2020 Action-adventure DMA Design Reverse engineered C++ source code, with support for multiple platforms based on GLFW, including the Nintendo Switch.[329] Source code available at GitHub.[330] It was hit with a DMCA takedown on 20 February 2021.[331]
Grand Theft Auto: Vice City 2002 2020 Action-adventure Rockstar North Reverse engineering started in early May 2020 and finished in December, being based on the decompiled Grand Theft Auto III code.[332][333][330] It was hit with a DMCA takedown on February 20.[331]
Half-Life 1999 (Windows) 2013 FPS Valve Since 2002 Valve has released the source code of the game client and the game (server) in its SDK for modder use.[334] The Goldsrc engine and its other components were reverse engineered in context of the Xash3d project.[335] Ports to other systems became available, for instance Android or the OpenPandora.[336]
Inner Worlds 1996 (DOS) 2016 Fantasy adventure platformer Sleepless Software Originally shareware, in February 2000 the game was released as freeware in version 1.3.[337][338] Source code reverse engineered around 2016.[339]
Igor: Objective Uikokahonia 1994 (DOS) 2017 Point and click adventure Pendulo Studios Reverse engineered by Gregory Montoir, now hosted on GitHub, currently beta status.[340]
Heart of the Alien 1994 (Sega CD) 2004 Platformer Interplay Entertainment After Heart of the Alien became unsupported and unavailable, Gil Megidish took up 2004 the effort of extracting a source code variant from the binary game by reverse engineering to make the game available again on modern platforms.[341] The extracted source code was made open-source and is hosted freely available on SourceForge.
Jak and Daxter: The Precursor Legacy 2001 (PlayStation 2) 2022 Platformer Naughty Dog Naughty Dog coded the first three Jak and Daxter games in GOAL, a modified version of Lisp. A group of programmers created a program that could read and decompile GOAL code, which allowed them to reconstruct the game's source code. While all three Jak games are currently planned, the first has the most work done on it - including a port to modern PCs.[342]
Jet Set Willy 1984 (ZX) 2014 Platformer Software Projects This classic ZX Spectrum game was disassembled by Richard Dymond back into Z80 source code, and includes some very comprehensive comments.[343]
J.R.R. Tolkien's The Lord of the Rings, Vol. I 1990 (DOS) 2009 Adventure game Interplay Entertainment As the game is without official support for many years, a community developer reverse engineered the game engine and created around 2009 a substitute. The LPGLv2.1+ licensed open-source project allowed the porting to modern platforms,[344] for instance Windows, Linux and the OpenPandora handheld.[345]
Kid Chameleon 1992 (Genesis) ? Platformer Sega Technical Institute Reverse engineered assembly of the Sega Genesis game by Sonic fan site Sonic Retro, hosted on GitHub.[346]
KKnD Extreme 1997 (Windows) 2017 Real-time strategy Beam Software Reverse engineered and made available on GitHub by Alexandr Parshin.[347]
Little Big Adventure 1994 (Windows) 2004[348] Action-adventure Adeline Software International Reverse engineered after getting an "OK" by Frederick Raynal and placed on SourceForge (later GitHub) as Twin-e.[349][350]
Manic Miner 1983 (ZX) 2014 Platformer Bug-Byte This classic ZX Spectrum game was disassembled by Richard Dymond back into Z80 source code, and includes some very comprehensive comments.[351]
Mercenary, including Damocles and The Dion Crisis 1985 2002 (several years prior; Mercenary)[352] Adventure game Novagen Software A computer scientist fan reverse engineered all of the game engines and created a clone of the complete game series.[353] Source for MDDClone isn't publicly available.
Metroid 1986 (NES) ? Metroidvania Nintendo R&D1, Intelligent Systems The NES game was disassembled by the collaborative work of several developers over the course of years and modified to run on the more powerful MMC3 chip.[354][355]
Might and Magic 6/7/8 1998 (Windows) 2016 RPG New World Computing Reverse engineered as world-of-might-and-magic on GitHub by Alexandr Parshin and other programmers.[356]
Minecraft 2009 (Windows) 2010 Sandbox game Mojang The Mod Coder Pack (MCP)[357] offered scripts for de-obfuscation/decompilation of the Java-based version of Minecraft starting in 2010. The Mod Coder Pack was discontinued after Mojang began releasing deobfuscation mappings with each update in 2019.[358]
Nicky Boum 1992 2007 Platform game Microïds Reverse-engineered by Gregory Montoir and open-sourced in March 2006 with version 0.1.5. The engine reached with v0.2.0 playable status when development and distribution of the source code was stopped.[359] The source code was made in 2017 available on GitHub for some time, before the repository was set to private.[360]
Oo-Topos 1982 (Apple II) 2015 Interactive fiction Penguin Software Penguin Software released several of their Comprehend Adventure engine games as freeware, also from the Transylvania series.[361] After end of official support, Ryan Mallon reconstructed around July 2015 a source code variant of the game's engine to port these games.[362] Ryan Mallon works also on reverse engineering The Lost Vikings engine.[363]
Out Run 1986 (Arcade) 2012 Arcade racing Sega Since around 2009[364] a game enthusiast worked on decompiling source code of Out Run. In 2012 a truthful engine, called "Canon Ball", was released on GitHub. To run the game, the original game's assets are required.[365] Ports to many systems followed, like OpenPandora.[366]
Paper Mario 2000 (N64) 2023 Role-playing video game Intelligent Systems Decompiled in 2023 with code released on github.com[367]
Perfect Dark 2000 (Nintendo 64) 2022 First Person Shooter Rare Decompiled in 2022 with code released on github.com.[368]
Plants vs. Zombies 2011 (Windows Phone) 2021 Tower Defense Popcap Decompiled in 2021 with code released on github.com.[369]
Pokémon Red and Pokémon Blue 1996 (GBC) 2014 Role-playing video games Game Freak Reverse engineered assembly of the Game Boy Color game on github.com.[370]
Pokémon Yellow 1998 (GBC) 2014 Role-playing video games Game Freak Reverse engineered assembly of the Game Boy Color game on github.com.[371]
Pokémon Gold and Pokémon Silver 1999 (GBC) 2015 Role-playing video games Game Freak Reverse engineered assembly of the Game Boy Color game on github.com.[372]
Pokémon Crystal 2000 (GBC) 2014 Role-playing video games Game Freak Reverse engineered assembly of the Game Boy Color game on github.com.[373]
Pong 1972 2012 Arcade game Atari The available schematics ("source code") was reconstructed and adapted for modern and available electronic parts to a new PCB design in 2012.[374][375][376]
RollerCoaster Tycoon 2 2002 (Windows) 2014 Business simulation game Chris Sawyer In April 2014, a project to reverse engineer Roller Coaster Tycoon 2 into platform independent C source code, was started under the name OpenRCT2 by Ted 'IntelOrca' John.[377] Hosted as GPLv3 licensed open-source software on GitHub, it requires the original game's graphics and sound assets.[378]
PowerSlave 1996 2015 (console version) FPS Lobotomy Software On May 24, 2015, an unofficial remake based on the PlayStation version was released by Samuel "Kaiser" Villarreal for free.[379][380] In May 2015 publisher Night Dive Studios acquired the game rights,[380] Villarreal and Night Dive Studios working on a digital distribution re-release.[381] On January 2, 2017, Kaiser released the source code of his reverse engineered engine under the GPLv3 license on GitHub.[382][383]
2019 (PC version) In November 2019 a reverse engineered port of the DOS version of Powerslave was released.[384] The source code was released under the GPLv2 license.[385]
Sid Meier's Civilization 1991 (MS-DOS) 2023 (still ongoing) Turn-based strategy, 4X Microprose In year 2023 the work started on OpenCiv1 project to faithfully rewrite the game source code in platform independent C# language. The source code is hosted on GitHub as Open-source software under MIT license.
Silent Hill 3 2003 2018 Survival horror Konami In 2018, Palm Studios published a remake of the engine, written in C++ and using OpenGL.
Skifree 1991 (Windows) 2022 Arcade Microsoft In 2022 reconstructed C code was released.
Snipes 1983 (DOS) 2016 early networked Multi player game maze game SuperSet Software In July 2016, a faithful port by reverse engineering the original game became available. Permission was granted by original authors Drew Major and Kyle Powell[386] to make it public. The full C/C++ source code is available at GitHub.[387]
Sonic & Knuckles 1994 (Genesis) ? Platform Sega, Sonic Team Reverse engineered assembly of the Sega Genesis game by Sonic fan site Sonic Retro, hosted on GitHub.[388] Also includes a reverse engineered assembly of Sonic the Hedgehog 3.
Sonic Mania 2017 (Windows) 2022 Platform Christian Whitehead, PagodaWest Games, Headcannon, Hyperkinetic Studios (Plus) In August 2022, the base game and the 2018 Plus DLC were decompiled, with the code released on GitHub.[389]
Sonic the Hedgehog 1991 (Genesis) ? Platform Sega, Sonic Team Reverse engineered assembly of the Sega Genesis game by Sonic fan site Sonic Retro, hosted on GitHub.[390]
2013 (Windows) 2021 (Windows) Christian Whitehead, Simon Thomley In January 2021, the games' 2013 remaster was decompiled, with the code released on GitHub.[391]
Sonic the Hedgehog 2 1992 (Genesis) ? Platform Sega Technical Institute Reverse engineered assembly of the Sega Genesis game by Sonic fan site Sonic Retro, hosted on GitHub.[392]
2013 (Windows) 2021 (Windows) Christian Whitehead, Simon Thomley In January 2021, the games' 2013 remaster was decompiled, with the code released on GitHub.[391]
Sonic the Hedgehog CD 2011 (Windows) 2021 Platform Christian Whitehead, Simon Thomley In January 2021, the games' 2011 remaster was decompiled, with the code released on GitHub.[393]
Space Ace 1984 (Apple IIGS) 2015 Interactive movie Advanced Microcomputer Systems In July 2015 Rebecca Heineman released a reverse engineered Apple IIGS source code version on GitHub.[394][395]
Space Invaders 1978 2019 Arcade Taito In December 2019 a C translation by Jason McSweeney was released on GitHub.[396]
Star Castle 1980 (Atari 2600) 2012 Arcade Atari Former Atari engineer D. Scott Williamson re-created in three years work Star Castle faithfully for the Atari 2600. After a successful crowdfunding campaign on Kickstarter, he released everything for free on his website, including source code.[397][398][399]
StarCraft 1998 (Windows) 2014 Real-time strategy Blizzard Entertainment By static recompilation and reverse engineering of the original x86 binary to an intermediate C "pseudo-assembly" source code,[400] an unofficial version for the Pandora handheld and the ARM architecture became available in 2014.[401][402]
Star Wars Episode I: Racer 1999 2017 Arcade racing LucasArts Reverse engineering of the code since 2017.[403] Currently only a small part of the source code is reverse engineered, it is partly emulation. The main functionality is still coming from the original binary where newly created replacement parts are spliced-in in runtime.
Star Wars Jedi Knight: Dark Forces II 1997 2013 FPS LucasArts Since 2013, a recreation of the engine has been in development on GitHub.[404]
Strike Commander 1993 (DOS) 2013 Flight simulator Origin Systems In 2013 a SC reverse engineering project by Fabien Sanglard with a reconstructed source code variant became available on GitHub as the original source code was most probably lost in the take over of Origin by EA.[405][406]
Styx 1983 1998 Arcade Windmill Software Reverse engineered by Andrew Jenner in 1998, implemented in x86 assembly with the title Styx Remastered and released as GPL.[299]
Super 3D Noah's Ark 1994 (DOS) 2015 FPS Wisdom Tree In October 2015 a community reconstructed, under usage of already released id software engine code, source code variant became available on Bitbucket.[407][408][409]
Super Bomberman 1993 (SNES) 2015 Action, Maze Hudson Soft Reverse engineered assembly and build system of Super Bomberman by Lior Helphon on GitHub. Rebuilds several different versions of the game, and can restore some disabled debug features.[410]
Super Mario Bros. 1985 (NES) 2012 Platformer Nintendo R&D4 Commented disassembly of SMB on GitHub.[411] A statically reverse engineered version, compiling and running with SDL was developed around 2017–2018.[412]
Super Mario Bros. 3 1988 (NES) 2017 Platformer Nintendo R&D4 Commented disassembly of SMB3 on GitHub.[413]
Super Mario 64 1996 (N64) 2019 Platform game Nintendo EAD In 2016,[414][irrelevant citation] enthusiasts began to rewrite every function by hand, referencing a MIPS disassembly, then compile the code with the game's original compiler in qemu-irix, resulting in an identical copy of the game. This took advantage of the fact that Nintendo didn't turn on any compiler optimizations for the first Japanese and US releases.[415] Their work was leaked on 4chan in June 2019 but it was finally released in late August of the same year.[416]
Syndicate Wars 1996 (DOS) 2010 Real-time tactics Bullfrog Productions In January 2010 a reverse engineering project of the MS-DOS-based Syndicate Wars was finished by two developers and builds for Windows, Mac and Linux were released.[417] It is complete beside networking and joystick code.[418]
The Great Escape 1986 (ZX) 2016 Arcade adventure Denton Designs David Thomas started in 2012 a reverse engineering project to create portable C source code from the ZX Spectrum version's binary, which reached in January 2016 compiling state.[419][420]
The Last Ninja 1987 (Amiga) 2009 Action-adventure game System 3 Robert Crossfield reverse engineered[citation needed] a faithful engine[dubious – discuss] from the Amiga version of the game[421] since 2009[citation needed] (inactive from 2014). First two levels were partially completed.[422]
The Legend of Zelda: A Link to the Past 1991 (SNES) 2022 Action-adventure game Nintendo EAD Reverse-engineered assembly of the original Japanese Super Famicom version, allowing for a port to the PC written in C. The code is hosted on GitHub.[423]
The Legend of Zelda: Ocarina of Time 1998 (Nintendo 64) 2021 Action-adventure game Nintendo EAD Reverse-engineered over the span of two years, users decompiled the PAL debug ROM of the Master Quest release for speedrunners to more deeply understand the game.[424][425]
Tomb Raider: Chronicles 2000 (PS) 2017 Action-adventure game Core Design Around February 2017 PSX SDK tools and debug symbols leaked to a forum which ignited a reverse engineering project on GitHub.[426][427][428] Status, compiling.
Touhou Project (1 to 5) 1996 2014 Shoot 'em up ZUN Soft "The Touhou PC-98 Restoration Project" was started around 2014 on GitHub on base of found source code of libraries.[429] In progress.
Touhou Project (from 6 onwards) 2002 2014 Shoot 'em up Team Shanghai Alice PyTouhou is a free and open-source reimplementation of Touhou 6 engine in Python and now Rust by three French programmers: Emmanuel Gil Peyrot, Thibaut Girka and Gauvain Roussel-Tarbouriech. While the Python branch is mostly complete, albeit for a few bugs, the Rust branch is still a work-in-progress. Other Touhou Project engine reimplementations after the 5th installment are a work-in-progress.[430]
Transport Tycoon Deluxe 1994 (DOS) 2004 Business simulation game Chris Sawyer/Microprose In 2003, Ludvig Strigeus started to reverse engineer Transport Tycoon Deluxe and convert the game to C. In 2004, this re-engineered Transport Tycoon Deluxe was released and christened OpenTTD and is still under active development by the community.[431][432]
Ultima 3: Exodus 1983 2002 RPG Richard Garriott Disassembled and ported to GBC in 2001 by Sven Carlberg. Richard Garriott was aware and pleased by this work.[433]
Undertale 2015 2019 Role-playing video game Toby Fox The game's decompiled source code was uploaded to GitHub in February 2019, although it has since been taken down.[434]
Zorgons Revenge 1983 (Oric) 2014 Shooter John Sinclair Jean-François Fabre created binary translation libraries for Oric BASIC and assembly code to portable C and used it for nine games.[435] Source code re-created and released for: House of Death, L'Aigle d'Or, Le Manoir du Dr Genius, Le Retour du Dr Genius, Rendez-vous de la Terreur, Xenon 1, Strip 21, Zebbie, Zorgons' Revenge.[436] Build available for the OpenPandora.[437]
ZZT 1991 (DOS) 2020 Action-adventure, puzzle Tim Sweeney / Potomac Computer Systems ZZT's source code got reconstructed by Adrian Siekierka in 2020.[438] Compilation with Turbo Pascal 5.5 produces an identical .EXE file than the original release. Done with permission from Tim Sweeney (who lost the original source code[439][440]). The source code is released under a permissive license[441] on GitHub.[442]


See also

edit

References

edit
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  192. ^ "Look what fell off the back of a truck! The original, commented source code for the Atari 8-bit version of Pac Man. [...] There are 2 versions there: the original from 1982 that compiled in Atari Macro Assembler, & a version adapted for the modern MADS assembler". Twitter. 27 August 2019. Retrieved 27 December 2019.
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  194. ^ "Pachinko Dream - the Cutting Room Floor".
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  248. ^ Savetz, Kevin (17 May 2018). "Here's the source code for Up'N Down, from Charlie Kulas. I believe this is a pre-production version of the game. I have a later version as well, which I haven't scanned yet". AtariAge. Retrieved 9 April 2020.
  249. ^ "Urban Assault (Aug 17, 1998 prototype with source code) - Hidden Palace". hiddenpalace.org.
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  252. ^ Forest of Illusion [@forestillusion] (27 March 2022). "Today we have released the source code to Wipeout by Psygnosis, a futuristic racing game set in 2052! It includes the source to both the original PSX game as well as it's [sic] Windows port. Please note that it is currently unknown if these sources are fully buildable" (Tweet). Archived from the original on 27 March 2022. Retrieved 27 March 2022 – via Twitter.
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  254. ^ "BIG NEWS: Wing Commander I Source Code Archived!". wcnews.com. 26 August 2011. Archived from the original on 9 November 2013. Retrieved 14 January 2013. Thanks to an extremely kind donation from an anonymous former EA/Origin developer, the source code to the PC version of Wing Commander I is now preserved in our offline archive! Because of our agreement with Electronic Arts, we're not allowed to post recovered source code for download--but rest easy knowing that the C files that started it all are being kept safe for future reference. Our offline archive contains material that has been preserved but which can't be posted, including other source code and budget data from several of the games.
  255. ^ "Wing Commander III – The Source Code". wcnews.com. 13 September 2011. Archived from the original on 3 December 2013. Retrieved 14 January 2013. As we celebrate Wing Commander III's first widespread retail availability since the late 1990s, we would like to mention for anyone that we have the game's source code in our offline archive. We know it's frustrating for fans, who could do amazing things with this, to read these updates... but it's also in everyone's best interests to remind EA that we have the raw material from which they could port Wing Commander III to a modern computer or console. Just let us know!
  256. ^ "Wing Commander IV: Source Code". wcnews.com. 3 April 2012. Archived from the original on 9 November 2013. Retrieved 14 January 2013. As with Wing Commander I and Wing Commander III, we are pleased to announced that an extremely kind former EA/Origin employee has provided a copy of the Wing Commander IV source code for our preservation efforts! We can't offer it for download at this time, but it is now preserved for future use.
  257. ^ "William Shatner's TekWar Source & executables". 1995.
  258. ^ "The Witcher 3 Next-Gen Leaked Source Code Fully Unlocked to Everyone". DSOGaming. 19 April 2024.
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  260. ^ GET LAMP Raw Interviews Pretty Much Up Archived 2016-01-30 at the Wayback Machine on ascii.textfiles.com by Jason Scott (3 December 2012)
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  262. ^ Baio, Andy (17 April 2008). "Milliways: Infocom's Unreleased Sequel to Hitchhiker's Guide to the Galaxy". waxy.org. Archived from the original on 26 January 2016. Retrieved 26 January 2016. From an anonymous source close to the company, I've found myself in possession of the "Infocom Drive" — a complete backup of Infocom's shared network drive from 1989.[...] Among the assets included: design documents, email archives, employee phone numbers, sales figures, internal meeting notes, corporate newsletters, and the source code and game files for every released and unreleased game Infocom made
  263. ^ Sharwood, Simon (8 May 2020). "Source code for seminal adventure game Zork circa-1977 exhumed from MIT tapes, plonked on GitHub". The Register. Situation Publishing. Archived from the original on 18 June 2020. Retrieved 9 July 2020.
  264. ^ Linville, John W. (12 February 2018). "Z Intepreter Source for CoCo Recovered". Retro Tinker. Archived from the original on 14 July 2023. Retrieved 22 November 2023.
  265. ^ Plotkin, Andrew (21 November 2023). "All that Infocom interpreter code". Zarf Updates. Archived from the original on 22 November 2023. Retrieved 22 November 2023.
  266. ^ Ciolek, Todd (17 October 2012). "Among the Missing: Notable Games Lost to Time". 1up.com. Archived from the original on 17 October 2012. Retrieved 19 June 2015.
  267. ^ Andersen, John (27 January 2011). "Where Games Go To Sleep: The Game Preservation Crisis, Part 1". Gamasutra. Archived from the original on 22 April 2013. Retrieved 10 January 2013. The existence of decaying technology, disorganization, and poor storage could in theory put a video game to sleep permanently -- never to be played again. Troubling admissions have surfaced over the years concerning video game preservation. When questions concerning re-releases of certain game titles are brought up during interviews with developers, for example, these developers would reveal issues of game production material being lost or destroyed. Certain game titles could not see a re-release due to various issues. One story began to circulate of source code being lost altogether for a well-known RPG, preventing its re-release on a new console.
  268. ^ "Bubble Bobble". Arcade History. 11 September 2012. Archived from the original on 30 September 2012. Retrieved 10 January 2013. In 1996, Taito announced that they lost the original source code program to Bubble Bobble following a reorganization - when it came to the recent ports and sequels, they had to work from program disassembly, playing the game and (mainly) the various home computer ports.
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  277. ^ M-HT (16 March 2015). "Albion". boards.openpandora.org. Archived from the original on 23 April 2015. Retrieved 24 April 2015. Here is a version for Windows, in case anyone is interested. Unpack it into the directory where Albion is installed - read the Readme for more information (use Albion.cmd to run the game).
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  298. ^ notaz (22 November 2015). "Diablo II". openpandora.org. Archived from the original on 20 December 2015. Retrieved 4 December 2015. This is statically recompiled Windows executable, that was recompiled to ARM and bundled with ARM version of wine.
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  318. ^ "colditz escape!". 2010. Archived from the original on 10 March 2016. Retrieved 14 January 2016.
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  320. ^ "Exile disassembly". level7.org.uk. 2012. Archived from the original on 13 April 2013. Retrieved 14 January 2013. Published by Superior Software in 1988, Exile is widely regarded as the most technically advanced game released for the BBC Micro. Featuring an enormous procedurally generated landscape, a complete physics engine and a host of game elements to interact with, it remains unsurpassed in pushing the capabilities of the system to their limits.
  321. ^ Exile Archived 2016-05-07 at the Wayback Machine on thunderpeel2001.com/exile "Email from Peter Irvin (creator of Exile): Yes I've recently decided to allow old versions of Exile to be downloaded for emulation under certain conditions: [...]"
  322. ^ Paul Robson's SDL Games Archived 2016-06-23 at the Wayback Machine "Football Manager - A remake of the (in)famous Sinclair Spectrum Football Manager game, complete with stick-man graphics. This is reverse engineered, so it should play identically. Finished. fm-0.99.tar.gz" (May 2004)
  323. ^ GP2X version at GP2X Archive (archived)
  324. ^ GLFrontier Project Page!!!1 Archived 2015-11-10 at the Wayback Machine on noflag.org.uk "This WAS the Atari ST version of the game Frontier: Elite 2 by the great man mentioned previously. It was disassembled, OS calls and hardware access removed, and originally run on a stripped down ST emulator (Hatari). Now it is compiled to C or native x86, and run much faster without 68K emulation. Most recently it has been modified to draw stuff with OpenGL at any shiny resolution with 8xAA, etc. A dandy evolution for a crappy old Atari ST game."
  325. ^ News on eliteclub.co.uk "8th November 2000 - Following much discussion on the subject of open-source by the Elite community, we have decided to make some alterations to our previous plans for the Elite Club - we are going to relax some of the restrictions we were intending to put on the distribution of the source code. The source code will now be distributable more freely, under a licence agreement similar to the GPL (GNU Public Licence)."
  326. ^ Welcome Commander, to the AmigaFFE Project Archived 2016-03-05 at the Wayback Machine "after I have seen the announcement of a release of the Sources of Frontier Elite II and Frontier First Encounters on the Eliteclub I was very happy with it. Now it is 2001 (around 2 years since the announcement) and they still haven't released it"
  327. ^ Jordan, John (1 December 2009). "JJFFE Central". jaj22.org.uk. Archived from the original on 3 March 2011. Retrieved 6 November 2015. What is JJFFE? JJFFE is set of recompiled replacement executables for the 1995 Frontier Developments game Frontier: First Encounters. There are currently versions that run under Windows 95/98/ME, Windows 2000, Windows XP, Windows NT4, OS/2, Linux and Mac. As well as running on many more operating systems than the original, JJFFE also includes minor improvements and bugfixes.
  328. ^ FFE_D3D Archived 2014-07-16 at the Wayback Machine on alioth.net
  329. ^ "GTA 3 Ported to Nintendo Switch, But Not by Rockstar Games". GAMING. 25 September 2020.
  330. ^ a b re3 on github.com
  331. ^ a b Yin-Poole, Wesley (20 February 2021). "GTA 3 and Vice City reverse-engineering fan project hit with DMCA takedown". Eurogamer.
  332. ^ "GTA III and Vice City get reverse engineered with a new game engine". GamingOnLinux. 17 February 2021.
  333. ^ Yin-Poole, Wesley (17 February 2021). "How a small group of GTA fanatics reverse-engineered GTA 3 and Vice City without (so far) getting shut down". Eurogamer.
  334. ^ halflife Archived 2017-06-27 at the Wayback Machine on github.com/ValveSoftware
  335. ^ xash3d-engine Archived 2016-12-20 at the Wayback Machine on indiedb.com
  336. ^ halflife on github.com/ptitSeb
  337. ^ download on internet archive (February 2000)
  338. ^ download on sleepless software
  339. ^ open-iw on github.com
  340. ^ igor on github.com
  341. ^ Heart of the Alien Redux Archived 2016-10-25 at the Wayback Machine on sourceforge.net
  342. ^ The Jak Project on github.com
  343. ^ Jet Set Willy on github.com
  344. ^ lotr Archived 2014-02-01 at the Wayback Machine by Michal Beneš on wonderland.cz
  345. ^ Lord of the Rings on pyra-handheld.com (2017)
  346. ^ Kid Chameleon on GitHub
  347. ^ OpenKKND on GitHub
  348. ^ Twin-e Archived 2015-07-25 at the Wayback Machine on SourceForge
  349. ^ Twine-e Archived 2015-10-26 at the Wayback Machine on GitHub.
  350. ^ 'Alone in the Dark 1' recode released - v0.1 Archived 2015-10-26 at the Wayback Machine on vogons.org
  351. ^ Manic Miner on github.com
  352. ^ "The Mercenary Site (MDDClone Section)". 9 April 2002. Archived from the original on 9 April 2002. Retrieved 14 June 2022. I decided, with MDDClone author, to distribute it after several years (...)
  353. ^ MDDClone (2007)
  354. ^ MetroidMMC3 Archived 2016-07-21 at the Wayback Machine on github.com
  355. ^ Metroid Source Code Archived 2016-01-04 at the Wayback Machine on metroid-database.com
  356. ^ world-of-might-and-magic on GitHub
  357. ^ The Mod Coder Pack Archived 2016-08-30 at the Wayback Machine on modcoderpack.com
  358. ^ Nathan Adams [@Dinnerbone] (4 September 2019). "I've been pushing for this for a while, so I'm really happy that we were finally able to release the obfuscation mappings public. @SeargeDP had a great idea to release the 1.14.4 mappings as comparison, so those are going out right now" (Tweet). Retrieved 11 May 2021 – via Twitter.
  359. ^ nicky on cyxdown.free.fr (December 26, 2007)
  360. ^ nicky on github.com/cyxx
  361. ^ The Comprehend Adventures Archived 2016-07-26 at the Wayback Machine on graphicsmagician.com
  362. ^ recomprehend by Ryan Mallon on github.com
  363. ^ "RyanMallon/TheLostVikingsTools". 2 March 2021 – via GitHub.
  364. ^ outrun-decompilation-project Archived 2016-12-21 at the Wayback Machine (2009-08-01)
  365. ^ Cannonball-manual Archived 2014-09-06 at the Wayback Machine on github.com
  366. ^ cannonball_ptitseb Archived 2016-12-20 at the Wayback Machine on repo.openpandora.org
  367. ^ Paper Mario on github.com
  368. ^ Perfect Dark on github.com
  369. ^ PlantsVsZombies.NET on github.com
  370. ^ pokered Archived 2016-07-21 at the Wayback Machine on github.com
  371. ^ pokeyellow Archived 2017-03-20 at the Wayback Machine on github.com
  372. ^ pokegold Archived 2018-02-03 at the Wayback Machine on github.com
  373. ^ pokecrystal Archived 2016-07-21 at the Wayback Machine on github.com
  374. ^ fabricating-hardware-from-the-original-arcade-pong-schematics Archived 2016-05-13 at the Wayback Machine on hackaday.com
  375. ^ Pong Archived 2016-05-29 at the Wayback Machine on atarihq.com
  376. ^ "Pong Reborn". Imgur. Archived from the original on 10 June 2016.
  377. ^ "OpenRCT2 project – Open-Source adaption of RollerCoaster Tycoon 2, gets a beta release". indieretronews.com. 8 September 2015. Retrieved 15 November 2015. I'm sure many of you remember the awesome game that is RollerCoaster Tycoon 2; a game by Chris Sawyer and published by Infograms in which you manage your very own theme park, with all its rides, shops, guests and economic fortune. Well that same game is now being given a much needed adjustment with the latest release of OpenRCT2 Project. An open source development which improves the game even further with new features, original bug fixes, raised game limits and much more! [...] Development started on April 2nd 2014 by Ted 'IntelOrca' John and thanks to numerous contributions from others
  378. ^ "OpenRCT2". GitHub. Archived from the original on 16 October 2015. Retrieved 15 November 2015.
  379. ^ Powerslave EX released Archived 2016-03-04 at the Wayback Machine, powerslaveex.wordpress.com.
  380. ^ a b Ruhland, Perry (4 May 2015). "An Interview With the Man Rebuilding Powerslave". TechRaptor. Archived from the original on 19 November 2015. Retrieved 18 November 2015.
  381. ^ Turok: The Dinosaur Hunter PC remake to resume development this year Archived 2016-07-10 at the Wayback Machine on VideoGamer.com by James Orry "The news comes from PC dev Samuel "Kaiser" Villarreal, who leaked the news speaking to Tech Raptor. Kaiser is currently remaking '96 shooter PowerSlave, and was asked about giving the same treatment to Turok." (8th May, 2015)
  382. ^ Source code to my hobby project, PowerslaveEX, has been made public! by SVKaiser on twitter.com
  383. ^ PowerslaveEX Archived 2017-05-24 at the Wayback Machine on github.com
  384. ^ "x.com".
  385. ^ Source code on github.com
  386. ^ "VOGONS • View topic - Snipes ported to C/C++ with 100% logic compatibility and replay recording". www.vogons.org. Archived from the original on 27 August 2016. Retrieved 25 August 2016.
  387. ^ Snipes on github.com
  388. ^ Sonic and Knuckles Disassembly on GitHub
  389. ^ Sonic Mania Decompilation Archived 2022-08-16 at the Wayback Machine on GitHub
  390. ^ Sonic 1 Disassembly on GitHub
  391. ^ a b Sonic 1/2 2013 Decompilation Archived 2021-01-18 at the Wayback Machine on GitHub
  392. ^ Sonic 2 Disassembly on GitHub
  393. ^ Sonic CD 2011 Decompilation Archived 2021-01-02 at the Wayback Machine on GitHub
  394. ^ spaceace iigs Archived 2015-08-10 at the Wayback Machine on GitHub.
  395. ^ Space-Ace Archived 2015-07-25 at the Wayback Machine on whatisthe2gs.apple2.org.za
  396. ^ loadzero/si78c on github.com
  397. ^ man-makes-star-castle-for-atari-2600-30-years-after-atari-said-it-couldnt-be-done Archived 2016-12-20 at the Wayback Machine on eurogamer
  398. ^ star-castle-2600-story Archived 2016-12-21 at the Wayback Machine on starcastle2600.blogspot.com
  399. ^ atari-2600-star-castle Archived 2017-03-21 at the Wayback Machine on kickstarter.com (2012)
  400. ^ Release: StarCraft Archived 2016-01-28 at the Wayback Machine on pyra-handheld.com "As you can see it doesn't look much different from x86 disassembly, the only difference is that you can compile it for other 32bit archs (there is no way it would work on 64bit.."
  401. ^ Steinlechner, Peter (10 March 2014). "Starcraft für ARM-Handheld kompiliert" (in German). golem.de. Archived from the original on 30 March 2014. Retrieved 25 March 2014.
  402. ^ notaz (4 March 2014). "StarCraft". openpandora.org. Archived from the original on 30 March 2014. Retrieved 26 March 2014.
  403. ^ "Under Construction". OpenSWE1R.
  404. ^ "Early-development Jedi Knight: Dark Forces 2 game engine recreation". GitHub. 23 July 2021.
  405. ^ Sanglard, Fabien (22 January 2014). "Reverse Engineering Strike Commander". Archived from the original on 23 January 2014. Retrieved 23 January 2014. Most people assume the source codes and gold versions of all finished games were stored in a Vault somewhere at EA. But after getting in touch with people at Wing Commander CIC, it appeared that all the source code was lost when the company closed.[...] On his first day one developer managed to delete the full 900MB of Strike Commander source tree.
  406. ^ libRealSpace Archived 2014-11-25 at the Wayback Machine on GitHub
  407. ^ S3DNA DOS Source Code Reconstructed Archived 2015-11-17 at the Wayback Machine on 28. August
  408. ^ w3d_plus Archived 2015-11-17 at the Wayback Machine on bitbucket.org
  409. ^ Re: Restoration of a few games' EXEs versions Archived 2015-11-17 at the Wayback Machine on classicdosgames
  410. ^ superbomberman Archived 2016-07-21 at the Wayback Machine on GitHub by Lior Halphon
  411. ^ A Comprehensive Super Mario Bros. Disassembly Archived 2015-10-26 at the Wayback Machine on GitHub by doppelganger
  412. ^ SuperMarioBros-C on github.com
  413. ^ "Smb3". GitHub. 20 September 2021.
  414. ^ SM64 Decompilation Project! on SMW Central (2 October 2016)
  415. ^ Super Mario 64 has been decompiled on reddit (2019)
  416. ^ "n64decomp/sm64". 15 March 2021 – via GitHub.
  417. ^ "Syndicate Wars Port - a reverse-engineering tale". gynvael.coldwind.pl. Archived from the original on 4 March 2016.
  418. ^ About Archived 2015-11-05 at the Wayback Machine "Syndicate Wars Port is a port of the 1996 DOS game Syndicate Wars to modern operating systems. In particular, it runs on GNU, Mac OS and Windows, but it should also work on any system supported by the SDL library on the i386 architecture."
  419. ^ The-Great-Escape Archived 2016-07-21 at the Wayback Machine on github.com/dpt
  420. ^ The Great Escape Archived 2016-04-17 at the Wayback Machine slides by David Thomas
  421. ^ TheLastNinja Archived 2016-02-24 at the Wayback Machine on github.com
  422. ^ "GitHub - segrax/TheLastNinja: The Last Ninja Remix". GitHub. 11 June 2018. Archived from the original on 11 June 2018. Retrieved 14 June 2022.
  423. ^ zelda3 on github.com
  424. ^ Orland, Kyle (6 May 2020). "Beyond emulation: The massive effort to reverse-engineer N64 source code". Ars Technica. Retrieved 26 November 2021.
  425. ^ Robinson, Andy (27 November 2021). "Zelda 64 has been fully decompiled, potentially opening the door for mods and ports". Video Games Chronicle. Retrieved 10 December 2021.
  426. ^ Decompiled Tomb Raider Source Code Reveals Loads Of Vulgar Words (NSFW) by Logan Booker on kotaku.com (2018-02-17)
  427. ^ TOMB5 on GitHub
  428. ^ decompiling_the_original_tomb_raider_games on reddit.com
  429. ^ ReC98 Archived 2016-08-29 at the Wayback Machine on github.com
  430. ^ "PyTouhou". pytouhou.linkmauve.fr. Archived from the original on 8 April 2020.
  431. ^ "OpenTTD 0.1.1". SourceForge page about OpenTTD. Archived from the original on 2 July 2010. Retrieved 11 December 2009.
  432. ^ "TTDPatch origin". Transport Tycoon Forums. Archived from the original on 27 September 2011. Retrieved 11 December 2009.
  433. ^ u3history Archived 2015-01-20 at the Wayback Machine on sven.50webs.org
  434. ^ "Decompiled Undertale RPG Source Code Released on GitHub". BleepingComputer.
  435. ^ Oric Game remakes Archived 2016-07-21 at the Wayback Machine on jotd.pagesperso-orange.fr "I have written a set of tools to convert BASIC and asm code to C and assemble them together. I have used them over the years to convert a few games. Some conversions get some enhancements, some not."
  436. ^ HouseOfDeath_dev.zip Archived 2016-07-21 at the Wayback Machine on jotd.pagesperso-orange.fr
  437. ^ L'Aigle d'Or Archived 2016-07-21 at the Wayback Machine on pyra-handheld.com by ptitSeb (Dec 20, 2014)
  438. ^ ZZT's source code has been reconstructed - Reconstruction of ZZT is a game-changer for the ZZT community on retronauts.com by Stuart Gipp (March 17, 2020)
  439. ^ From The Past To The Future: Tim Sweeney Talks by Benj Edwards on Gamasutra "[...]if you still have those disks. TS: Sadly, I don't. It just didn't seem important. Yeah, that's the tragedy. I don't have the ZZT source code either. I wish I'd saved it all." (May 25, 2009)
  440. ^ zzt on epicgames.com "Please don't ask for the source; if I had it, I'd release it, but I lost it in a crash a long time ago." (1997)
  441. ^ license.txt on github.com/asiekierka/reconstruction-of-zzt
  442. ^ reconstruction-of-zzt on github.com
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