Game engine recreation is a type of video game engine remastering process wherein a new game engine is written from scratch as a clone of the original with the full ability to read the original game's data files. The new engine reads the old engine's files and, in theory, loads and understands its assets in a way that is indistinguishable from the original. The result of a proper engine clone is often the ability to play a game on modern systems that the old game could no longer run on. It also opens the possibility of community collaboration, as many engine remake projects tend to be open source.
In most cases a clone is made in part by studying and reverse engineering the original executable, but occasionally, as was the case with some of the engines in ScummVM, the original developers have helped the projects by supplying the original source code—those are so-called source ports.
Video game Name of game engine recreation Status License Refs Development Playable 7th GuestScummVM v64tng AbuseAbuse Age of EmpiresChariot Age of Empires Free Software Remake Age of Empires IIopenage freeaoe Aliens versus Predator (1999)avp avp_GLES Alone in the DarkFree in the Dark rowspan="4" rowspan="4" rowspan="4" Alone in the Dark 2 Alone in the Dark 3 Jack in the Dark AmbermoonAmbermoon.net Another WorldNew RAW raw (Rewritten engine for Another World) rawgl Arcanum: Of Steamworks and Magick ObscuraArcanum Community Edition Sustainable Use License Arx FatalisArx Libertatis Bermuda SyndromeBermuda Syndrome engine reimplementation Betrayal at KrondorxBaK Blade RunnerScummVM Blood Omen: Legacy of KainBlood Omnicide BVE TrainsimopenBVE Caesar IIICaesarIA Julius Julius on GitHub (6 March 2019)Augustus Cannon FodderOpen Fodder rowspan="2" rowspan="2" rowspan="2" Cannon Fodder 2 Carmageddondethrace The Castles of Dr. CreepCastles of Dr. Creep Catacomb 3-D CatacombGL rowspan="4" rowspan="4" rowspan="4" Catacomb Abyss Catacomb Armageddon Catacomb Apocalypse Cave StoryNXEngine doukutsu-rs Chaos;HeadFGRE rowspan="2" rowspan="2" rowspan="2" Steins;Gate Chasm: The RiftPanzerChasm Civilizationfreeciv OpenCiv1 Civilization IIfreeciv21 Civilization IIIOpenCiv3 Civilization VUnCiv Clannadxclannad Colonizationfreecol Command & Conquer Tiberian DawnFreeCNC OpenRA Vanilla Conquer Command & Conquer: Tiberian SunOpenTS Command & Conquer: Generals – Zero HourThyme OpenSAGE Command & Conquer: Red AlertFreeRA OpenRedAlert based on FreeCNC and FreeRA Red Alert++ / Chronoshift OpenRA Vanilla Conquer Commander Keen seriesKeen Dreams Commander Keen in Goodbye, GalaxyOmnispeak Commander Keen in Keen DreamsCommander Genius Reflection Keen Creaturesopenc2e openc2e on GitHub Chris Sawyer's LocomotionOpenLoco Curse of the Azure Bondscoab (Curse of the Azure Bonds) Doom engine gamesList of Doom ports Some active, many playable, several The Daedalus EncounterOpenDaed Death RallyDreeRally dRally Desert Strike: Return to the GulfOpenStrike rowspan="2" rowspan="2" rowspan="2" Jungle Strike: The Sequel to Desert Strike DiabloFreeablo Devilution Sustainable Use License DevilutionX Sustainable Use Licensedjavul Die by the SwordDie by the Sword – Xtended Dink SmallwoodGNU FreeDink Dragon Age IIxoreos(Bioware's Aurora engine and its derivatives) rowspan="7" rowspan="7" Dragon Age: Origins Jade Empire Neverwinter Nights Neverwinter Nights 2 Sonic Chronicles: The Dark Brotherhood The Witcher Star Wars: Knights of the Old Republic reone xoreos KotOR.js Star Wars Knights of the Old Republic II: The Sith Lords reone xoreos KotOR.js Dragon WarsOpenDW Driver 2REDRIVER2 Duke NukemFreeNukum ReDuke Duke Nukem IIRigel Engine Duke Nukem 3DEDuke32 Dune IIDuneLegacy Have You Played… Dune II Remake Dune Legacy? on Rock, Paper, Shotgun by Alec Meer (19 September 2015)OpenDUNE Dune Dynasty Dungeon KeeperKeeperFX Dungeon Keeper 2OpenKeeper GLKeeper The Elder Scrolls I: ArenaOpenTESArena The Elder Scrolls II: DaggerfallXL Engine (DaggerXL) Daggerfall Unity One For The Weekend: Daggerfall Tools For Unity by Shaun Green on Rock, Paper, Shotgun (25 January 2015) The Elder Scrolls III: MorrowindProject Aedra as-is OpenMW The Crystal Scrolls ELF CorporationANISE EliteElite – The New Kind Elite : Harmless Escape from ColditzColditz Escape EverQuestLanternEQ Eye of the Beholder ScummVM Kyra engine Eye of the Beholder II ScummVM Kyra engine ArcEngine Spectalum Eye of the Beholder III: Assault on Myth Drannor Thirdeye F-1 SpiritF1-Spirit Remake F-1 Spirit remake on Brain Games Fade to Blackf2bgl FalloutFallout Community Edition Sustainable Use License Fallout Reference Edition Sustainable Use License Fallout 2Falltergeist DarkFO jsFO Fallout 2 Reference Edition Sustainable Use License Fallout 2 Community Edition Sustainable Use License Vault13 Final Fantasy VIIQ-Gears Final Fantasy VIIIOpenVIII Fish FilletsFish Fillets NG Flashback: The Quest for IdentityREminiscence FloodReFlood FreelancerLibrelancer Frontier: Elite IIFrontier 1337 GLFrontier Frontier: First EncountersjjFFE GameMaker "Classic" (≤8.1) gamesOpenGMK Game Creator GameMaker Studio 1 gamesOpenGML DejaVu-llvm DejaVu Acolyte GothicREGoth REGoth-bs Gothic IIREGoth REGoth-bs OpenGothic Grand Theft AutoOpenGTA Grand Theft Auto 2GTA2NET Grand Theft Auto 3re3 Grand Theft Auto: Vice City The Great EscapeThe Great Escape The Great Giana SistersOpenGGS about on openggs.romanhoegg.ch "As of August 2009 I have been given permission to use the C64 sprites of the original game by Manfred Trenz" (2009) Heart of DarknessHODe Heart of the Alien Heart of The Alien Redux Heroes of Might and Magic II fheroes2 Heroes of Might and Magic IIIVCMI project Igor: Objective UikokahoniaIgor Imperium GalacticaOpenIG Jagged Alliance 2 JA2-Stracciatella Jak and Daxter: The Precursor LegacyOpenGOAL Jak 2 Jak 3 Jazz JackrabbitOpenJazz Star Wars: Dark ForcesThe Force Engine Outlaws Star Wars Jedi Knight: Dark Forces IIOpenJKDF2 Custom Star Wars Jedi Knight II: Jedi OutcastOpenJK Star Wars Jedi Knight: Jedi Academy J.R.R. Tolkien's The Lord of the Rings, Vol. ILord of the Rings Engine Lord of the Rings Engine by Michal Benes KKnD: Krush, Kill 'n Destroy OpenRA OpenKKND Knytt Storiesknyttds The Legend of Zelda: A Link to the PastZelda3 The Legend of Zelda: Ocarina of TimeShip of Harkinian The Legend of Zelda: Majora's Mask2 Ship 2 Harkinian The Legend of Zelda: Twilight PrincessDusklight Lego Islandisledecomp Lemmings (Windows version)Lemmini Little Big AdventureTwinEngine ScummVM Little Big Adventure 2LBA 2 Engine LBA2 Remake Little Fighter 2Project-F engine source on GitHub (14 May 2021) Magic Carpetremc1 Magic Carpet: Hidden Worldsremc1hw Magic Carpet 2remc2 Marathon Trilogy Aleph One Marble Blast Ultra OpenMBU Master of Orion1oom Remnants of the Precursors Master of Orion II: Battle at Antares2ooM OpenMOO2 Medal of Honor: Allied AssaultOpenMoHAA engine source on GitHub (19 June 2020) Mercenary (including Damocles and The Dion Crisis) MDDClone Metroid PrimeMetaforce rowspan="3" rowspan="3" Metroid Prime 2: Echoes Metroid Prime 3: Corruption Midnight Club IIOpenMC2 The Legend of Sword and Fairy (also known as PAL)SDLPAL Magnetic Scrolls adventure games (e.g. The Pawn, Guild of Thieves)Magnetic ScummVM Might and Magic IV: Clouds of XeenScummVM OpenXeen Might and Magic V: Darkside of XeenScummVM OpenXeen Might and Magic VI: The Mandate of HeavenOpenEnroth Might and Magic VII: For Blood and Honor Might and Magic VIII: Day of the Destroyer Need For SpeedOpenNFS1 Need for Speed III: Hot PursuitOpenNFS Need For Speed IINeed For Speed II SE Nicky BoomNicky NoxOpenNox Nuclear WarNetnuclear Oddworld: Abe's ExoddusR.E.L.I.V.E. rowspan="2" rowspan="2" rowspan="2" Oddworld: Abe's Oddysee One Must Fall 2097Openomf OutcastOpenOutcast OutpostOutpostHD Out Runcannonball Panzer General IIOpen General Perfect Darkperfect_dark PharaohAkhenaten Ozymandias Prince of PersiaFreePrince SDLPoP MININIM Redneck RampageRednukem rowspan="2" rowspan="2" Redneck Rampage Rides Again Return to Castle Wolfensteiniortcw Rick Dangerousxrick RollerCoaster TycoonFreeRCT RollerCoaster Tycoon 2OpenRCT2 RuneScapeOpenRSC Lost City/2004Scape source code on GitHub Sonic CD (2011)Sonic-CD-11-Decompilation Sonic the Hedgehog (2013)Sonic-1-2-2013-Decompilation Sonic the Hedgehog 2 (2013) Sonic ManiaSonic-Mania-Decompilation RPG Maker 2000EasyRPG rowspan="2" rowspan="2" RPG Maker 2003 RPG Maker XP aka Ruby Game Scripting System (RGSS)mkxp, mkxp-z rowspan="3" rowspan="3" RPG Maker VX (RGSS2) RPG Maker VX Ace (RGSS3) The SettlersFreeserf The Settlers IIReturn to the Roots (RttR) SilencerzSilencer The SimsSimitone engine source on GitHub (14 May 2020) The Sims OnlineFreeSO Project Dollhouse SimCity 2000OpenSC2K source code on GitHub (last commit on February 2018) SimTowerOpenSkyscraper StarCraftSCSharp StarGus with Stratagus Strike CommanderlibRealSpace StrongholdSourcehold source code on GitHub (2 January 2020)Castlekeep Dune 2000Tiberian SunRed Alert 2OpenRA SubSpaceContinuum How Fans Revived 'Subspace,' a Forgotten 20-Year-Old Game About Spaceships by Emanuel Maiberg on vice.com (6 July 2015) Super Mario 64Super Mario 64 Port Super Mario Worldsmw Super Metroidsm SyndicateFreeSynd System ShockShockolate engine source on GitHub (17 August 2020)TSSHP (The System Shock Hack Project) S.T.A.L.K.E.R.: Shadow of ChernobylOpenXRay (in fact not a reimpl, but just a release) non-commercial S.T.A.L.K.E.R.: Clear Sky S.T.A.L.K.E.R.: Call of Pripyat The Temple of Elemental EvilTemple+ Theme HospitalCorsixTH Titus the FoxOpenTitus Tomb Raider classic seriesTRX – Tomb Raider I & II: Community Edition on GitHub (22 February 2025)CroftEngine CroftEngine source on GitHub (4 June 2022)OpenRaider OpenTomb OpenTomb source on GitHub (29 May 2020)OpenLara OpenLara source on GitHub (23 August 2020)Tomb Raider 5 Decompilation Project Tomb Raider 5 Decompilation Project on GitHub (22 February 2025)TombEngine Total AnnihilationSpring Engine (with eXtended Total Annihilation, Balanced Annihilation or Beyond All Reason) Total Annihilation 3D Touhou 6 ~ The Embodiment of Scarlet DevilPyTouhou Transport Tycoon DeluxeOpenTTD (reverse engineered) TyrianOpenTyrian freescape engine used for games like Driller and Castle MasterPhantasma Dungeon Master, Chaos Strikes Back, and Dungeon Master IIChaos Strikes Back for Windows (and Linux, MacOS X, Pocket PC) (reverse engineered) RTC GoldSrc (Half-Life 1) gamesXash3D FWGS Key dating sim gamesWaffle adventure games created with World BuilderScummVM (WAGE) Key ren'ai games using the AVG32 engine, especially Kanon, Air and Clannadxkanon RLVM Adventure Game Interpreter (AGI) engine by Sierra adventure gamesNAGI Adventure Game Interpreter (AGI) engine, Cinématique, Gob, Groovie, KyraScummVMScummVM-supported games Multimedia Applications Development Environment (MADE engine) SCUMM Sierra's Creative Interpreter (SCI) M4, Parallaction, and others Grim Fandango (GrimE-based)ResidualVM