List of commercial video games with available source code


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 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, 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 available source code

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 or undeleted content.
Title Original releaseSource code found or leakedSystemGenreOriginal developerAdditional information
360: Three Sixty19992020PlayStationRacingSmart DogThe PlayStation source code can be found in a dummy file on the disc.
Actua Soccer 9619961996MS-DOSSportsGremlin InteractiveA demo CD that shipped with a game magazine accidentally contained the C++ source code of the game.
Adventure in Time19812016Atari 8-bit/Apple IIAdventure gamePhoenix SoftwareIn 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.
Age of Pirates: Captain Blood20102022WindowsAction-adventure game/Hack and slash1C: Seawolf StudioSource code of game engine was released on GitHub under GPLv3 on 28 November 2022.
Age of Pirates 2: City of Abandoned Ships20092021WindowsRole-playing gameAkellaSource 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.
Airforce Delta20002020Game Boy ColorFlight simulatorClimax StudiosSource code of the Game Boy Color version was leaked on 4chan in May 2020.
Aliens versus Predator 220012002WindowsFPSMonolith ProductionsSource code released on the Monolith Productions FTP server in 2002, then quickly taken down.
Area 5120052024PlayStation 2, XboxFPSMidway Studios AustinFinal source code for the game was leaked on GitHub by Andrew Sampson on 7 March 2024.
Asteroids19791996Atari 7800ArcadeAtariSource 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. Ports for modern FPGAs were made later.
Army Men19982022WindowsReal-time tacticsThe 3DO CompanySource code for the Windows version was uploaded to archive.org in 2022.
Art of Fighting19922014Neo GeoFighting gameSNKThe source code was found on an NEC PC-9821 used for developing Neo Geo titles in 2014.
Aztec19822019Atari 8-bitAction-adventureDatamostIn January 2019 Jason Scott uploaded the source code of this game to the Internet Archive.
Battle Konchuuden19992019PlayStationRole-playing gameJaleco EntertainmentA zip file was found within the retail games dummy data, which included the full PlayStation source code to the game.
Beatmania 5th Mix19992000PlayStationMusic video gameKonamiWith the 2000 Japanese PSX game Beatmania Best Hits there was mistakenly included the source code for the 1999 game Beatmania 5th Mix.
The Bilestoad19822019Apple IIAction-adventureDatamostIn January 2019 Jason Scott uploaded the source code of this game to the Internet Archive.
The Black Cauldron19852022MS-DOSAdventureSierra EntertainmentDuring 25–27 October 2022, Jason Scott uploaded to GitHub 13 repositories containing source code for a variety of video games.
Blood19972000–2010, 2023MS-DOSFPSQStudios / Monolith ProductionsIn 2000, partial source code of an alpha version was leaked. In 2010, the complete alpha source code was leaked. Using the code as reference, a reverse engineered build of the final version was created by Alexander Makarov for source ports around 2017. A later alpha draft from July 1996 was leaked in January 2023 by "x0r_jmp".
Blood & Magic19962021MS-DOSReal-time strategyTachyon StudiosSource code was uploaded to archive.org in 2021.
B.O.B. / Space Funky B.O.B.19932008SNESSide-scrolling gameElectronic ArtsOn 12 September 2008, the source code of the SNES version became available as it was found on an eBay-bought hard drive.
Buck Rogers: Planet of Zoom19832018Atari 8-bitRail shooterSegaOn 17 May 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.
California Watersports20012020PlayStationSportsTheyer GFXThe PlayStation source code was released in 2020 with the permission of developer Mark Theyer.
Captain Comic19882012NESPlatformerMichael DenioIn September 2012 the source code of the NES version was offered on eBay.
Chicken Run20002011, 2024Dreamcast, Game Boy ColorStealth gameBlitz GamesIn May 2011, the Sega Dreamcast source code became available, found by a collector on a Dreamcast Dev Kit's harddrive. On 14 January 2024, was released on archive.org.
Chill19982020PlayStationSportsSilicon DreamsA zip file was found within the retail game's dummy data, which included the full PlayStation 1 source code to the game.
Columns19902010Game GearPuzzle gameSegaGame Gear version source code was found in 2006 and released in 2010.
Counter-Strike: Global Offensive20122020WindowsFirst-person shooterValveA 2017 version of the game's source code was leaked on 4chan in 2020.
Cruis'n USA19942021ArcadeRacing gameMidway GamesUploaded by Jason Scott to GitHub on 6 April 2021.
Crysis 220112022Windows, Xbox 360, PlayStation 3First-person shooterCrytekSource code was released on a web forum in August 2022, before being reuploaded to Internet Archive in 2023.
Crysis 320132024WindowsFirst-person shooterCrytekPassworded source code was released by a ransomware group in 2020, but went largely unnoticed until 2024 when the password was discovered and made available on archive.org.
Cybermorph19932014Atari JaguarGraphic adventureAttention to DetailSource released in 2014 on atariage.com.
Cyberpunk 207720202021WindowsRole-playing gameCD Projekt RedSource code obtained in a 2021 ransomware attack against CD, and later leaked online.
Dark Chambers19882008Atari 2600Dungeon crawlAtari CorporationThe source code for the Atari 2600 version of Dark Chambers was uploaded to AtariAge by Curt Vendel on 9 February 2008.
Dark Engine 19982009–2010WindowsStealth gameLooking Glass StudiosIn 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. In late April 2010, a user on the Dreamcast Talk forum disassembled the contents of a Dreamcast development kit he had purchased. Later, significant updates for the Dark Engine-based games were published.
Dark Reign 220002011WindowsRTSPandemic StudiosReleased by a former developer of Pandemic Studios under LGPL. Legal status unclear.
Defender19812021ArcadeScrolling shooterWilliams ElectronicsOn 7 January 2021, Jason Scott uploaded to GitHub the source code for the original arcade version of Defender.
Desert Falcon19872008Atari 2600Scrolling shooterGeneral Computer CorporationThe source code for the Atari 2600 version of Desert Falcon was uploaded to AtariAge by Curt Vendel on 9 February 2008.
Devil May Cry 220032020VariousHack and slashCapcomSource code was obtained in a 2020 ransomware attack against Capcom.
Donald Duck's Playground19862022MS-DOSAdventureSierra EntertainmentDuring 25–27 October 2022, Jason Scott uploaded to GitHub 13 repositories containing source code for a variety of video games.
Donkey Kong19812008Atari 8-bitPlatformNintendoIn August 2008 the 6502 assembly language source code of Donkey Kong was published at the AtariAge forum by Curt Vendel, and was discussed there by the original developer, Landon Dyer.
Doom19932023, 2024Macintosh, DOS, SNESFirst-person shooterid SoftwareDoom's Macintosh and DOS source code appeared on eBay in two different lots, and once purchased later found its contents online: the first on 19 September 2023 and the second on 19 March 2024. Amiga floppy disks containing the SNES source code were released on archive.org on 5 June 2024.
Double Dragon II: The Revenge19892013MS-DOSBeat em upTechnōs JapanIn 2013 the Internet Archive put the undeleted assembly sources of the DOS version for download.
Dragon Rage20012001PlayStation 2ShooterThe 3DO CompanySource code hidden inside a dummy file in the PlayStation 2 version of Jonny Moseley Mad Trix.
Duke Nukem Forever 20012022WindowsFirst-person shooter3D RealmsSource code to an alpha version of the game, dated 26 October 2001, was leaked on 10 May 2022
Empire1977197?FORTRAN/PDP-10turn-based wargameWalter BrightAt 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. This code was continually modified, being passed around from person to person and ported to other system e.g. to VAX/VMS OS.
Eve Online20032011WindowsSpace strategy MMOCCP GamesOn 20 May 2011, someone released the EVE Online source code on a GitHub repository. After the source code was online four days, CCP issued a DMCA take-down request which was followed by GitHub.
Extreme-G 320012015PlayStation 2Racing gameAcclaim CheltenhamThe source code came into hands of a community member by unknown means around 2015.
Eye of the Beholder II: The Legend of Darkmoon19912021MS-DOSRole-playing gameWestwood AssociatesThe source code was released on archive.org in 2021.
Falcon 4.019982000WindowsCombat flight simulatorMicroProseA 2000 source code leak 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.
Fall Guys: Ultimate Knockout20202021WindowsBattle royale gameMediatonicIntermediate C++ source code accidentally included with a 2021 update.
Fate20052015WindowsAction RPGWildTangentInadvertently 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.
Far Cry20042023VariousFirst-person shooterCrytekThe source code was released on archive.org in 2023.
Football Director DS20082024Nintendo DSSportsSports Director LimitedThe source code was released on GitHub in 2024 by its designer and programmer Roger Womack.
The F.A. Premier League Stars20002016WindowsSportsElectronic ArtsSource code found in a Windows prototype build.
FIFA 9719961996WindowsSportsElectronic ArtsAround 1996 Electronic Arts accidentally put the game's source code on a demo disc.
FIFA 2120202021VariousSportsElectronic ArtsIn 2021, hackers leaked 751 GB of data relating to the development of FIFA 21, including source code, assets, and the [Frostbite (game engine)|Frostbite game Game engine|engine.]
Forsaken19982007Windows6DOF shooterProbe EntertainmentIn 2007, nine years after the first release, the source code became available to the public. The game's community took up the game and kept updating and porting the game via a GitHub repository under a GPL license.
Friday the 13th: The Game20172021VariousSurvival horrorIIIFonic, Black Tower StudiosPartial Unreal Engine project leaked via Google Drive on 2 December 2021.
Frogger (1997)19972023PlayStation, WindowsActionSCE Studio CambridgePlayStation and Windows source code leaked on 4chan on 27 September 2023.
Frogger (Game.com)19992011Game.comActionHasbro InteractiveSource code included with Game.com official emulator.
Frogger 2: Swampy's Revenge20002025PlayStation, Windows, Dreamcast, Game Boy Color, Nintendo 64ActionBlitz GamesFull development archives released in 2025.
Gears of War2006UnknownXbox 360 WindowsThird-person shooterEpic GamesWhile 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.
Glover19992024PlayStationPlatformerBlitz GamesOn 14 January 2024, the PlayStation source code and numerous builds were uploaded by Codebound to the Internet Archive.
Grand Theft Auto V20132023WindowsAction-adventureRockstar NorthSource 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.
Guilty Gear Strive20212025Xbox One, PlayStation 4, WindowsFighting gameArc System WorksDuring May 2025 several prototype builds of the game leaked, eventually followed by a 122GB archive of the games source code being made available on torrent trackers.
GunZ: The Duel20052011WindowsThird-person shooterMAIET EntertainmentIn 2011 the source code of GunZ 1.5 became available online.
Gwent: The Witcher Card Game20182021WindowsCollectible card gameCD Projekt RedSource code obtained in a 2021 ransomware attack against CD Projekt Red, and was leaked to 4chan on 9 February 2021.
Hägar the Horrible19922021Commodore 64PlatformKingsoftSource code for the Commodore 64 version was uploaded to archive.org in 2021.
Half-Life 220042003WindowsFPSValveAn alpha version of Half-Life 2 source code was leaked in 2003, a year before the game's release. A complete snapshot of the game from 2017 also became public in the 2020 Source Engine leak.
Halo Wars20092021Xbox 360RTSEnsemble StudiosSource code for a prototype version dated 3 months before the games release was leaked in 2021.
Hard Drivin'19892024Atari STSim racingTengenOn 25 January 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.
Harry Potter and the Chamber of Secrets20022020WindowsAction-adventureKnowWonderSource code from a prototype version was leaked in 2020.
Heavenly Sword20072016PlayStation 3Action-adventureNinja TheorySource code was posted online in 2016, and later partially reuploaded to GitHub in 2019.
Hexen: Beyond Heretic19952024MS-DOSFirst-person shooterid SoftwareOn 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 19 March 2024.
Hexen: Beyond Heretic19952024MacintoshFirst-person shooterid SoftwareA CD-ROM containing Hexen's Macintosh source code was sold on ebay on 6 Oct 2024. Its contents have not yet been found online.
Home Alone 2: Lost in New York19922016NESActionImagineeringGame source released of the NES game in 2016 by Frank Cifaldi after finding it on an old hard drive.
Hulk20032021VariousActionRadical EntertainmentSource code released on 4chan on 22 August 2021.
Jimmy Neutron vs. Jimmy Negatron20022022Game Boy AdvanceActionHuman SoftSource 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.
Joust19822021ArcadeActionWilliams ElectronicsOn 7 January 2021, Jason Scott uploaded to GitHub the source code for the original arcade version of Joust.
Kelly Slater's Pro Surfer20022021PlayStation 2SportsTreyarchSource code found in a ZIP file in a prototype version of the PlayStation 2 version.
Killer720052016GameCubeAction-adventure gameGrasshopper ManufactureSources and assets from the GameCube game were found in October 2016 on an open webserver.
King's Quest IIIMS-DOSAdventureSierra EntertainmentDuring 25–27 October 2022, Jason Scott uploaded to GitHub 13 repositories containing source code for a variety of video games.
Lethal Enforcers I & II19971997PlayStationRail shooterKonamiSource code hidden inside a dummy file.
Leisure Suit Larry in the Land of the Lounge Lizards19872022MS-DOSAdventureSierra EntertainmentDuring 25–27 October 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.
Leisure Suit Larry Goes Looking for Love (in Several Wrong Places)19882022MS-DOSAdventureSierra EntertainmentDuring 25–27 October 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.
Leisure Suit Larry III: Passionate Patti in Pursuit of the Pulsating Pectorals19892022MS-DOSAdventureSierra EntertainmentDuring 25–27 October 2022, Jason Scott uploaded to GitHub 13 repositories containing source code for a variety of video games.
Leisure Suit Larry 5: Passionate Patti Does a Little Undercover Work19912022DOSAdventureSierra EntertainmentDuring 25–27 October 2022, Jason Scott uploaded to GitHub 13 repositories containing source code for a variety of video games.
Lineage II20032003WindowsMMORPGNCSOFTIn 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.
Mad Planets19832021ArcadeMultidirectional shooterGottliebUploaded to the Internet Archive by Jason Scott on 20 May 2021.
Manic Miner20022022Game Boy AdvancePlatformerJester InteractiveReleased on 20 February 2022, by Forest of Illusion.
Metal Arms: Glitch in the System20032019GameCubeThird-person shooterSierra EntertainmentUploaded to archive.org in 2019.
Metin 22004?WindowsMMORPGYmir EntertainmentThe 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 Pack19962004WindowsCasual gameMicrosoftIn 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, Taipei and TicTactics.
The Misadventures of Tron Bonne19992020PlayStationAction-adventureCapcomSource code was obtained in a 2020 ransomware attack against Capcom.
MoHo20002022DreamcastActionLost ToysSource code to the Dreamcast version was found and released in 2022.
Monopoly20002018WindowsBoardArtech StudiosThe source code for the Microsoft Windows version of the 2000 video game Monopoly was leaked in August 2018.
Mortal Kombat II19932022ArcadeFightingMidway GamesDuring 25–27 October 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.
Mortal Kombat 319942023ArcadeFightingMidway GamesIn December 2023, Jason Scott uploaded the arcade source of Mortal Kombat 3.
Mortal Kombat Trilogy19962018VariousFightingMidway GamesGame source code for the Nintendo 64 version was leaked anonymously on 4chan, alongside the Windows, PS1, and Arcade source of Mortal Kombat 3.
Monsters, Inc.20012019PlayStation 2PlatformKodiak InteractiveSource code and artwork for the PlayStation 2 version was uploaded to archive.org in 2019.
Mr Nutz 219942008AmigaPlatformerOcean SoftwareAmiga game, source code prototype associated with Peter Thierolf.
Mr. Robot and His Robot Factory19832019Apple IIPlatformDatamostIn January 2019 Jason Scott uploaded the source code of this game to the Internet Archive.
The Muppets on the Go!19962017Sega PicoEducationalClimax StudiosSource code found on a backup disc, among art assets and more.
Myst19952014Atari JaguarGraphic adventureCyan WorldsSource released in 2014 on atariage.com.
Narc19882021ArcadeRun and gunWilliams ElectronicsUploaded by Jason Scott to GitHub on 6 April 2021.
NBA Jam19932021ArcadeSports video gameMidway GamesOn 6 April 2021, Jason Scott uploaded to GitHub the source code for the original arcade version of NBA Jam and NBA Jam: Tournament Edition.
NBA Jam Extreme19962017VariousSportsSculptured SoftwareIn February 2017 the source code was discovered on an archival CD liquidated by Acclaim Entertainment during their bankruptcy sale. It was subsequently sold on eBay for $500.
NBA Jam 200120002023Game Boy ColorSportsDC StudiosOn 7 November 2023, the source code and numerous builds were uploaded by Codebound to the Internet Archive.
NBA Hangtime19962021ArcadeSportsMidway GamesUploaded by Jason Scott to GitHub on 6 April 2021.
NFL Blitz 200019992023ArcadeSportsMidway GamesDuring 18–19 October 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.
NHL Hockey19912024GenesisSportsPark Place ProductionsOn 16 February 2024, the source code was uploaded by Codebound to the Internet Archive.
NHL Open Ice19962021ArcadeSportsMidway GamesUploaded by Jason Scott to GitHub on 6 April 2021.
Nickelodeon Party Blast20022020VariousParty gameData Design InteractiveFound a developer's HDD in September 2020, along with many other Data Design Interactive games.
Ninety-Nine Nights20062021Xbox 360Hack and SlashQ EntertainmentSource code from an unknown point of development was leaked in 2021, later uploaded to archive.org.
Ninja Hattori-kun19862019FamicomPlatformerHudson SoftUploaded to GitHub on 24 December 2019.
Various Nintendo and Game Freak games1990-20242020-2024VariousVariousVariousThroughout 2020, the source code for several games by Nintendo was leaked by anonymous users on 4chan. These include the first four generations of the Pokémon series and the firmware for the Nintendo 64, GameCube, and 3DS. See Nintendo data leak for more information. In 2024, a data leak similar to that of the Nintendo data leak occurred, when Game Freak was breached for more Pokémon games.
Oni20012021VariousThird-person shooterBungieOn 29 April 2021, an unknown source uploaded the source code to the Internet Archive.
Outlaw Golf20022021VariousGolfHypnotixOn 2 January 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.
Pac-Man19822019Atari 8-bitMazeRoklanIn August 2019 the source code for the Atari 8-bit version was released by Kevin Savetz.
Pachinko Dream19961996PlayStationPachinkoKonamiSource code found inside a dummy file.
Pesterminator: The Western Exterminator19902019NESside-scrollingColor DreamsIn November 2019 the NES source code was uploaded to the Internet Archive.
Pinball Fantasies19942020DOSPinballFrontLine DesignOn 20 December 2020, Jason Scott uploaded to GitHub the source code for the DOS port of Pinball Fantasies.
Pocket Music20022022Game Boy ColorMusicJester InteractiveReleased on 23 February 2022, by Forest of Illusion.
Pole Position19832009Atari 2600RacingGeneral Computer CorporationOn 20 May 2009, Curt Vendel released the source code of the Atari 2600 conversion of Pole Position.
Police Quest: In Pursuit of the Death Angel19872022DOSAdventureSierra EntertainmentDuring 25–27 October 2022, Jason Scott uploaded to GitHub 13 repositories containing source code for a variety of video games.
Postal III20112020WindowsFirst-person shooterRunning with ScissorsLeaked onto 4chan in June 2020, and contains pre-release Half-Life 2 and Team Fortress 2 content.
Ragnarok Online 220072014WindowsMMORPGGravityPosted on a forum found through unknown means.
Raid 202019892019Atari 2600Side-scrolling action gameColor DreamsSource code was found on a floppy disk and uploaded to archive.org in 2019.
Rat Attack!19982024PlayStationPuzzlePure EntertainmentPlayStation source code obtained from a developer.
Rayman Raving Rabbids 20062022WindowsParty gameUbisoftSource code of an alpha platformer build of Rayman Raving Rabbids was obtained through unknown means and released on 12 December 2022. It also contains the tools and the source code from Ubisoft's Jade Engine.
Rayman 2: The Great Escape19992022Nintendo DSPlatformerUbisoftSource code for Nintendo DS version was obtained through unknown means and released on 3 February 2022. It also contains assets from the Nintendo 64 version of Donald Duck: Goin' Quackers.
Re-Volt1999200?WindowsRacing gameAcclaim Studios LondonMembers 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. The game community works since then on fan patches and source ports to new platforms like Linux, MacOS and OpenPandora.
Resident Evil: The Umbrella Chronicles20072020Wii, PlayStation 3Rail shooterCapcomSource code was obtained in a 2020 ransomware attack against Capcom.
Revolution X19942021ArcadeShooting galleryMidway GamesUploaded by Jason Scott to GitHub on 6 April 2021.
Robotron: 208419822021ArcadeMultidirectional shooterVid KidzOn 7 January 2021, Jason Scott uploaded to GitHub the source code for the original arcade version of Robotron: 2084.
Rolling Thunder19872016Amigaside-scrolling action gameTiertex Design StudiosThe Amiga version became available on a community forum.
Saints Row IV20132024Windows, PlayStation 3, Xbox 360Action-adventureVolitionOn 25 December 2024 a 59GB archive was posted to 4chan, containing the majority of the games source code & third-party libraries.
San Francisco Rush: The Rock2023ArcadeMidway GamesDuring 18–19 October 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.
Silent Hill: Downpour20122024PlayStation 3, Xbox 360Survival horrorVatra GamesSource code was uploaded to Internet Archive on 3 September 2024.
The Simpsons: Hit & Run20032021VariousRacingRadical EntertainmentSource code obtained from a developer and released on 4chan on 21 August 2021.
Sinistar19832021ArcadeMultidirectional shooterWilliams ElectronicsUploaded by Jason Scott to GitHub on 6 April 2021.
Smash TV19902021ArcadeMultidirectional shooterWilliams ElectronicsUploaded by Jason Scott to GitHub on 6 April 2021.
Sonic the Hedgehog 219922006GenesisPlatformerSega Technical InstituteA small portion of the game's source code was discovered within the data of an early 1992 prototype build that was shown on Nick Arcade when it was found in 2006. The code likely relates to the game's edit mode feature.
Sonic Unleashed 20082017J2MEPlatformerGameloftThe J2ME mobile version was uploaded to GitHub in 2017, however it was taken down in 2020.
Speedball 2: Brutal Deluxe19902022PocketPC / DreamcastSportsThe Bitmap BrothersSource code to the PocketPC and an unreleased Dreamcast port was found and released in 2022.
Spider-Man 220232023PlayStation 5Action-adventureInsomniac GamesSource code leaked as part of a ransomware attack on Insomniac Games in December 2023.
Spirit of Speed 193720002022DreamcastRacing gameBroadsword InteractiveSource code to the Dreamcast version was found and released in 2022.
SpongeBob SquarePants: SuperSponge20012016PlayStation, Game Boy AdvancePlatformerClimax DevelopmentThe PlayStation version's development repository was released on GitHub in 2018, converted from an old Microsoft Visual SourceSafe repository. Curiously, it was discovered that the game contained code from the Linux kernel, and therefore violates the GNU General Public License. Source code from a very early build of the GBA version was also found.
S.T.A.L.K.E.R.: Clear Sky 20082014WindowsFPSGSC Game WorldIn 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. The successor's engine, X-ray 1.6.02, became available too. 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.
Starbound20162023WindowsSandbox gameChucklefishLeaked onto 4chan on 18 June 2023.
Stargate19812021ArcadeScrolling shooterVid KidzOn 7 January 2021, Jason Scott uploaded to GitHub the source code for the original arcade version of Stargate.
Star Trek: New Worlds20002021WindowsReal-time strategyBinary AsylumSource code from a prototype build was uploaded to archive.org in 2021.
Star Wars19832021ArcadeRail shooterAtari, Inc.During 13–16 October 2021, Jason Scott uploaded to GitHub 78 repositories containing source code to several Atari arcade games. 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 Galaxies20032014WindowsMMOSony Online EntertainmentIn 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. 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 '9619962022PlayStationSportsRage SoftwareSource code found on a Dreamcast development kit.
Super 3D Noah's Ark19942018SNESFPSWisdom TreeIn November 2018 the source code for SNES version was bought on eBay and released to the public.
Swashbuckler19822019Apple IIFightingDatamostIn January 2019 Jason Scott uploaded the source code of this game to the Internet Archive.
The Lion King19942025Game Boy, NESPlatformerImagineerSource code was released on 1 January 2025.
Tempest 200019942008Atari Jaguartube shooterLlamasoftOn 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.
Three Dirty Dwarves19962016Sega SaturnBeat 'em upSegaSoftSource code found in a prototype build.
Toontown Online20032020WindowsMMODisney InteractiveIn 2020, a GitHub user named "satire6" uploaded two repositories containing full source code and assets from a 2010 build of the game.
Tomb Raider II19972021PlayStationAction-adventureCore DesignSource code was released on archive.org in 2021.
Tony Hawk's Underground20032016VariousSportsNeversoftThe C++ source code was leaked in February 2016 to GitHub.
Total Carnage19922021ArcadeMultidirectional shooterMidway GamesUploaded by Jason Scott to GitHub on 6 April 2021.
Trog19902021ArcadeRacing gameMidway GamesUploaded by Jason Scott to GitHub on 6 April 2021.
Turrican III19942008AmigaRun and gunFactor 5Amiga game, source code prototype associated with Peter Thierolf.
Turok: Dinosaur Hunter19972017Nintendo 64First-person shooterIguana Entertainment / Acclaim EntertainmentIn 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 26 August 2018, then reuploaded, non-encrypted to 4chan the following day.
Trespasser1998200?WindowsAction-adventure, FPSDreamWorks InteractiveThe fan community got the original source code into hand by unknown means and created modifications and unofficial patches with it, the latest DirectX 9 port from 2016 and the development ongoing.
Ultima IX: Ascension19992014WindowsRole-playing video gameOrigin SystemsIn 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.
Ultimate Mortal Kombat 319942009PlayStationBeat'em upMidway GamesThe source code and artwork from the PSX version were recovered from floppies in 2009.
Unreal Championship 220052020WindowsFirst-person shooterEpic GamesLeaked to 4chan on 29 July 2020.
Up'n Down19842018Atari 8-bitRacing, mazeSegaOn 17 May 2018, Kevin Savetz uploaded scans of the complete source code of the Atari 8-bit conversion of Upn Down donated by Charlie Kulas.
Urban Assault19982016WindowsReal-time strategyTerraToolsFound on eBay.
Warcraft II: The Dark Saga19972020PlayStationReal-time strategyBlizzard EntertainmentSource code for the PlayStation version was uploaded to archive.org.
Various WayForward games200?-201?2024VariousVariousWayForwardAn 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.
Wipeout19952022PlayStation, WindowsRacingPsygnosisSource code for the PlayStation and Windows versions uploaded by Forest of Illusion.
Wipeout Pulse20092018PlayStation 2Racing gameSonyThe PlayStation 2 version contains source code hidden inside a dummy file. The source code is not for the game itself.
Wing Commander series19902011VariousSpace simulatorOrigin SystemsThe 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. Later most other parts of the series followed.
William Shatner's TekWar19952021WindowsFirst-person shooterCapstone SoftwareReleased on archive.org in 2021.
WWF WrestleMania: The Arcade Game19952021ArcadeRacing gameMidway GamesUploaded by Jason Scott to GitHub on 6 April 2021.
The Witcher 320152024WindowsRole-playing gameCD Projekt RedIn 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.
Wizardry III: Legacy of Llylgamyn19832021VariousRole-playing gameSir-TechThe source code was released on archive.org in 2021.
Xbox system software20012020XboxVideo game console operating systemMicrosoftIn May 2020, the Xbox operating system source code was leaked.
Zork and other Infocom games19772008VariousAdventureInfocomIn 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. On 5 May 2020, the Massachusetts Institute of Technology uploaded to GitHub the source code for 1977–1978 versions and 1977/1989 binaries of Zork. 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. On 16 November 2023, the source code for the original Infocom intepreter for a wide variety of platforms was uploaded to GitHub. On 19 November, the source code for the IBM PC interpreter was uploaded by David Fillmore.

Games with reconstructed source code

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. 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.
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 releaseSource-code reconstructedGenreOriginal developerAdditional information
Albion1996 2011AdventureBlue ByteIn 2011, via static recompilation from the original x86 binary executable a port for the ARM architecture of the Pandora handheld was created by fans. The community still updates this recompiled version and released also Windows and Linux builds in 2015, source code available on GitHub under MIT.
Another World19912011Platform gameDelphine Software InternationalIn 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.
Bagman19822010Arcade gameValadon AutomationIn 2010, the French programmer Jean-François Fabre reconstructed C source code from the game to port it to modern platforms.
Banjo-Kazooie1998 2024Platform gameRareDecompiled in 2024 with code released on gitlab.com.
Bermuda Syndrome1995 2007AdventureCentury InteractiveAfter 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, like the OpenPandora handheld.
Boulder Dash1984 2016Arcade gameFirst Star SoftwareThe C64 version was bit accurate reverse engineered by enthusiasts in month long work in 2016. 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.
The Castles of Dr. Creep1984 2010Platform gameEdward R. HobbsRobert Crossfield worked on a faithful engine for the game since 2010. The remake/reconstructed version got released for PC on Steam by Edward R. Hobbs & Robert Crossfield in September 2016.
Cannon Fodder1993 2015top-down shooterSensible SoftwareIn 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.
Chasm: The Rift1997 2016First-person shooterAction FormsAround 2016 a reverse engineered version became available on GitHub.
Citadel1985 2018Action-adventureSuperior SoftwareBuildable, 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.
Commander Keen 4-61991 2021Sidecrolling shooterid SoftwareBetween 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. C99 source code is hosted on GitHub under GPLv2. Originally only meant for Keen 5, it now supports Keen 4, 5 and 6.
Diablo1996 2018Action RPGBlizzard EntertainmentIn 2018 a reverse engineered version was released, based on previously accidentally released debug information and builds by Diablo developers. Builds and compiles successfully for modern OSes.
Diablo II2000 2015Action RPGBlizzard EntertainmentIn 2015, an unofficial port for the ARM architecture based Pandora handheld became available by static recompilation and reverse engineering of the original x86 version.
Digger19831998ArcadeWindmill SoftwareReverse engineered by Andrew Jenner in 1998, called Digger Remastered, released as GPL and ported for many platforms.
Driver 22000 2020DrivingReflections InteractiveIn 2020 a reverse engineered version was released, based on previously accidentally released debug symbols.
Duke Nukem II1993 2022Platform gameApogee SoftwareIn 2022 was released.
Dune II1992 2009Real-time strategy gameWestwood StudiosIn 2009 a group started reverse engineering Dune II under the name OpenDUNE. The resulting code was released under GPLv2 and ported to other platforms like the Pandora.
Dungeon Keeper19972005realtime dungeon simulatorBullfrog ProductionsTomasz Lis reverse engineered a version called KeeperFX, the resulting source code is released as GPLv3. After developer Lis stopped working on KeeperFX around 2016 the community took up the work in 2019 and continues the project as KeeperFX Unofficial.
Dungeon Master19892001Dungeon crawlerFTL GamesIn 2001, Dungeon Master 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. In 2014 Christophe Fontanel released another reverse engineering project which tries to recreate all existing versions.
E.T. the Extra-Terrestrial1982 2006ArcadeAtariIn 2006, decompiled by Dennis Debro. Following that, several unofficial fixes for the game were released by a fan site.
Elite1984 2003Space trading gameIan Bell, David BrabenChristian 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. In September 2014, on Elite's 30th birthday, Ian Bell blessed Elite: The New Kind and re-released it for free on his website. Source code of the 1.0 version is available on a GitHub repository.
Escape from Colditz1991 2009Action-adventureMike Halsall, John Law / Digital Magic Software.Around 2009 some developers reconstructed from the Amiga version a C version under GPLv3. Ported then to many systems.
Exile1988 2012Action-adventurePeter Irvin, Jeremy SmithAround 2012 the assembly source code of the BBC Micro version was reconstructed and commented. Later author Peter Irvin blessed also the non-commercial redistribution of the Amiga version of the game.
Freeway1981 19??Arcade gameActivisionDecompiled and commented by Rebecca Heineman.
Football Manager19822001Sports, business simulationKevin TomsIn 2001 Paul Robson developed an accurate remake of the original game by reverse engineering in C. The remake has since been ported to the GP2X and Google Android.
Frontier: Elite 219932006Space trading gameFrontier DevelopmentsReverse engineered to C by Tom Morton until 2006.
Frontier: First Encounters 19952005Space trading gameFrontier DevelopmentsFrontier Developments announced in 2000 that FFE would be open-sourced under a GPL-similar license, but this never happened. In response, in October 2005 the game was reverse engineered by John Jordan and builds for modern operation systems were provided. Updated until 1 December 2009, and later continued by other programmers with builds like "FFE_D3D".
Final Fantasy VIII19992019Role-PlayingSquare EnixIn 2019, Marcin Gomulak rewrote the engine from scratch in C#.
Grand Theft Auto III2001 2020Action-adventureDMA DesignReverse engineered C++ source code, with support for multiple platforms based on GLFW, including the Nintendo Switch. Source code available at GitHub. It was hit with a DMCA takedown on 20 February 2021.
Grand Theft Auto: Vice City20022020Action-adventureRockstar NorthReverse engineering started in early May 2020 and finished in December, being based on the decompiled Grand Theft Auto III code. It was hit with a DMCA takedown on 20 February.
Half-Life1999 2013FPSValveSince 2002 Valve has released the source code of the game client and the game in its SDK for modder use. The Goldsrc engine and its other components were reverse engineered in context of the Xash3d project. Ports to other systems became available, for instance Android or the OpenPandora.
Inner Worlds1996 2016Fantasy adventure platformerSleepless SoftwareOriginally shareware, in February 2000 the game was released as freeware in version 1.3. Source code reverse engineered around 2016.
Igor: Objective Uikokahonia1994 2017Point and click adventurePendulo StudiosReverse engineered by Gregory Montoir, now hosted on GitHub, currently beta status.
Heart of the Alien1994 2004PlatformerInterplay EntertainmentAfter 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. The extracted source code was made open-source and is hosted freely available on SourceForge.
Jak and Daxter: The Precursor Legacy2001 2022PlatformerNaughty DogNaughty 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.
Jet Set Willy1984 2014PlatformerSoftware ProjectsThis classic ZX Spectrum game was disassembled by Richard Dymond back into Z80 source code, and includes some very comprehensive comments.
J.R.R. Tolkien's The Lord of the Rings, Vol. I1990 2009AdventureInterplay EntertainmentAs 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, for instance Windows, Linux and the OpenPandora handheld.
Kid Chameleon1992 ?PlatformerSega Technical InstituteReverse engineered assembly of the Sega Genesis game by Sonic fan site Sonic Retro, hosted on GitHub.
KKnD Extreme1997 2017Real-time strategyBeam SoftwareReverse engineered and made available on GitHub by Alexandr Parshin.
Knuckles' Chaotix1995 ?PlatformSega, Sonic TeamReverse engineered assembly of the 32X game by Sonic fan site Sonic Retro, hosted on GitHub.
Little Big Adventure1994 2021Action-adventureAdeline Software InternationalSource code has been published on GitHub in 2021.
Lego Island1997 2024Action-adventureMindscapeIn June 2023, a group of GitHub users started decompiling the game, with the decompilation being functionally complete in late 2024.
Manic Miner1983 2014PlatformerBug-ByteThis classic ZX Spectrum game was disassembled by Richard Dymond back into Z80 source code, and includes some very comprehensive comments.
Mario Party 42002 2025PartyHudson SoftReverse-engineered over the span of a year-and-a-half by multiple developers, it was the very first GameCube game to have a fully working decompilation.
Mercenary, including Damocles and The Dion Crisis19852002 AdventureNovagen SoftwareA computer scientist fan reverse engineered all of the game engines and created a clone of the complete game series. Source for MDDClone isn't publicly available.
Metroid1986 ?MetroidvaniaNintendo R&D1, Intelligent SystemsThe 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.
Might and Magic 6/''7/8''1998 2016RPGNew World ComputingReverse engineered as world-of-might-and-magic on GitHub by Alexandr Parshin and other programmers.
Minecraft2009 2010Sandbox gameMojangThe Mod Coder Pack 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.
Nicky Boum19922007Platform gameMicroïdsReverse-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. The source code was made in 2017 available on GitHub for some time, before the repository was set to private.
Oo-Topos1982 2015Interactive fictionPenguin SoftwarePenguin Software released several of their Comprehend Adventure engine games as freeware, also from the Transylvania series. After end of official support, Ryan Mallon reconstructed around July 2015 a source code variant of the game's engine to port these games. Ryan Mallon works also on reverse engineering The Lost Vikings engine.
Out Run1986 2012Arcade racingSegaSince around 2009 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. Ports to many systems followed, like OpenPandora.
Paper Mario2000 2023Role-playing video gameIntelligent SystemsDecompiled in 2023 with code released on github.com
Perfect Dark2000 2022First Person ShooterRareDecompiled in 2022 with code released on github.com.
Plants vs. Zombies2011 2021Tower DefensePopcapDecompiled in 2021 with code released on github.com.
Pokémon Red and Pokémon Blue1996 2014Role-playing video gamesGame FreakReverse engineered assembly of the Game Boy Color game on github.com.
Pokémon Yellow1998 2014Role-playing video gamesGame FreakReverse engineered assembly of the Game Boy Color game on github.com.
Pokémon Gold and Pokémon Silver1999 2015Role-playing video gamesGame FreakReverse engineered assembly of the Game Boy Color game on github.com.
Pokémon Crystal2000 2014Role-playing video gamesGame FreakReverse engineered assembly of the Game Boy Color game on github.com.
Pong19722012Arcade gameAtariThe available schematics was reconstructed and adapted for modern and available electronic parts to a new PCB design in 2012.
PowerSlave19962015 FPSLobotomy SoftwareOn 24 May 2015, an unofficial remake based on the PlayStation version was released by Samuel "Kaiser" Villarreal for free. In May 2015 publisher Night Dive Studios acquired the game rights, Villarreal and Night Dive Studios working on a digital distribution re-release. On 2 January 2017, Kaiser released the source code of his reverse engineered engine under the GPLv3 license on GitHub.
PowerSlave19962019 FPSLobotomy SoftwareIn November 2019 a reverse engineered port of the DOS version of Powerslave was released. The source code was released under the GPLv2 license.
RollerCoaster Tycoon 22002 2014Business simulation gameChris SawyerIn 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. Hosted as GPLv3 licensed open-source software on GitHub, it requires the original game's graphics and sound assets.
Sid Meier's Civilization1991 2023 Turn-based strategy, 4XMicroproseIn year 2023 the work started on 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 320032018Survival horrorKonamiIn 2018, Palm Studios published a remake of the engine, written in C++ and using OpenGL.
Skifree1991 2022ArcadeMicrosoftIn 2022 was released.
Snipes1983 2016early networked Multi player game maze gameSuperSet SoftwareIn July 2016, a faithful port by reverse engineering the original game became available. Permission was granted by original authors Drew Major and Kyle Powell to make it public. The full C/C++ source code is available at GitHub.
Sonic & Knuckles1994 ?PlatformSega, Sonic TeamReverse engineered assembly of the Sega Genesis game by Sonic fan site Sonic Retro, hosted on GitHub. Also includes a reverse engineered assembly of Sonic the Hedgehog 3.
Sonic Mania2017 2022PlatformChristian Whitehead, PagodaWest Games, Headcannon, Hyperkinetic Studios In August 2022, the base game and the 2018 Plus DLC were decompiled, with the code released on GitHub.
Sonic the Hedgehog1991 ?PlatformSega, Sonic TeamReverse engineered assembly of the Sega Genesis game by Sonic fan site Sonic Retro, hosted on GitHub.
Sonic the Hedgehog2013 2021 PlatformChristian Whitehead, Simon ThomleyIn January 2021, the games' 2013 remaster was decompiled, with the code released on GitHub. on GitHub
Sonic the Hedgehog 21992 ?PlatformSega Technical InstituteReverse engineered assembly of the Sega Genesis game by Sonic fan site Sonic Retro, hosted on GitHub.
Sonic the Hedgehog 22013 2021 PlatformChristian Whitehead, Simon ThomleyIn January 2021, the games' 2013 remaster was decompiled, with the code released on GitHub.
Sonic CD1993 ?PlatformSega, Sonic TeamReverse engineered assembly of the Sega CD game by Sonic fan site Sonic Retro, hosted on GitHub.
Sonic CD2011 2021 PlatformChristian Whitehead, Simon ThomleyIn January 2021, the games' 2011 remaster was decompiled, with the code released on GitHub.
Space Ace1984 2015Interactive movieAdvanced Microcomputer SystemsIn July 2015 Rebecca Heineman released a reverse engineered Apple IIGS source code version on GitHub.
Space Invaders19782019ArcadeTaitoIn December 2019 a C translation by Jason McSweeney was released on GitHub.
Star Castle1980 2012ArcadeAtariFormer 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.
StarCraft1998 2014Real-time strategyBlizzard EntertainmentBy static recompilation and reverse engineering of the original x86 binary to an intermediate C "pseudo-assembly" source code, an unofficial version for the Pandora handheld and the ARM architecture became available in 2014.
Star Wars Episode I: Racer19992017Arcade racingLucasArtsReverse engineering of the code since 2017. 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 II19972013FPSLucasArtsSince 2013, a recreation of the engine has been in development on GitHub.
Strike Commander1993 2013Flight simulatorOrigin SystemsIn 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.
Styx19831998ArcadeWindmill SoftwareReverse engineered by Andrew Jenner in 1998, implemented in x86 assembly with the title Styx Remastered and released as GPL.
Super 3D Noah's Ark1994 2015FPSWisdom TreeIn October 2015 a community reconstructed, under usage of already released id software engine code, source code variant became available on Bitbucket.
Super Bomberman1993 2015Action, MazeHudson SoftReverse 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.
Super Mario Bros.1985 2012PlatformerNintendo R&D4Commented disassembly of SMB on GitHub. A statically reverse engineered version, compiling and running with SDL was developed around 2017–2018.
Super Mario Bros. 31988 2017PlatformerNintendo R&D4Commented disassembly of SMB3 on GitHub.
Super Mario 641996 2019Platform gameNintendo EADIn 2016, 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. Their work was leaked on 4chan in June 2019 but it was finally released in late August of the same year.
Syndicate Wars1996 2010Real-time tacticsBullfrog ProductionsIn 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. It is complete beside networking and joystick code.
The Great Escape1986 2016Arcade adventureDenton DesignsDavid 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.
The Last Ninja1987 2009Action-adventureSystem 3Robert Crossfield reverse engineered a faithful engine from the Amiga version of the game since 2009. First two levels were partially completed.
The Legend of Zelda: A Link to the Past1991 2022Action-adventureNintendo EADReverse-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.
The Legend of Zelda: Ocarina of Time1998 2021Action-adventureNintendo EADReverse-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.
The Legend of Zelda: Twilight Princess2006 2025Action-adventureNintendo EADReverse-engineered over the span of more than two years. The code is hosted on GitHub.
Tomb Raider: Chronicles2000 2017Action-adventureCore DesignAround February 2017 PSX SDK tools and debug symbols leaked to a forum which ignited a reverse engineering project on GitHub. Status, compiling.
Touhou Project (1 to 5)19962014Shoot 'em upZUN Soft"The Touhou PC-98 Restoration Project" was started around 2014 on GitHub on base of found source code of libraries. In progress.
Touhou Project (from 6 onwards)20022014Shoot 'em upTeam Shanghai AlicePyTouhou 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.
Transport Tycoon Deluxe1994 2004Business simulation gameChris Sawyer/MicroproseIn 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.
Ultima 3: Exodus19832002RPGRichard GarriottDisassembled and ported to GBC in 2001 by Sven Carlberg. Richard Garriott was aware and pleased by this work.
Undertale20152019Role-playing video gameToby FoxThe game's decompiled source code was uploaded to GitHub in February 2019, although it has since been taken down.
Zorgons Revenge1983 2014ShooterJohn SinclairJean-François Fabre created binary translation libraries for Oric BASIC and assembly code to portable C and used it for nine games. 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. Build available for the OpenPandora.
ZZT1991 2020Action-adventure, puzzleTim Sweeney / Potomac Computer SystemsZZT source code got reconstructed by Adrian Siekierka in 2020. Compilation with Turbo Pascal 5.5 produces an identical .EXE file than the original release. Done with permission from Tim Sweeney. The source code is released under a permissive license on GitHub.