Engine Rewrite · PC (classic)OpenRCT2RollerCoaster Tycoon 2Open-source re-implementation of RollerCoaster Tycoon 2 with modern-platform support, an improved interface and cooperative multiplayer.🔥 0🧊 016kEngine Rewrite · PC (classic)DevilutionXDiabloPort of Diablo and Hellfire for modern systems with engine improvements, bug fixes and optional quality-of-life features.🔥 0🧊 09.8kDecomp · PC (classic)DevilutionDiabloReconstructed source code of the 1996 game Diablo, requiring your own copy of the original game data.🔥 0🧊 09kEngine Rewrite · PC (classic)OpenTTDTransport Tycoon DeluxeOpen-source transport simulation game based on Transport Tycoon Deluxe, with multiplayer, add-on content and modern platform support.🔥 0🧊 08.4kEngine Rewrite · PC (classic)OpenMWThe Elder Scrolls III: MorrowindOpen-source open-world RPG engine that plays The Elder Scrolls III: Morrowind, with improved graphics and its own editor, OpenMW-CS.🔥 0🧊 06.6kEngine Rewrite · PC (classic)VCMIHeroes of Might and Magic IIIOpen-source engine for Heroes of Might and Magic III with modding support, a map editor and builds for desktop and mobile.🔥 0🧊 05.9kDecomp · PC (classic)Space Cadet Pinball3D Pinball for Windows - Space CadetDecompilation of 3D Pinball for Windows - Space Cadet that runs on Windows, Linux and macOS with your original game data.🔥 0🧊 04.7kEngine Rewrite · PC (classic)fheroes2Heroes of Might and Magic IIOpen-source rewrite of the Heroes of Might and Magic II engine with high-resolution graphics, improved AI and many fixes.🔥 0🧊 03.5kDecomp · PC (classic)LEGO Island DecompilationLEGO IslandComplete decompilation of LEGO Island (1997, version 1.1 English) that matches the original machine code and builds for 32-bit Windows.🔥 0🧊 03.5kEngine Rewrite · PC (classic)Fallout Community EditionFalloutRe-implementation of Fallout that keeps the original gameplay and adds engine bugfixes and quality-of-life improvements across platforms.🔥 0🧊 02.9kEngine Rewrite · PC (classic)OpenRWGrand Theft Auto IIICross-platform open-source re-implementation of Grand Theft Auto III that needs a legitimate copy of the PC game.🔥 0🧊 02.2kEngine Rewrite · PC (classic)freeabloDiabloArchived cross-platform reimplementation of the Diablo 1 engine that needs the original game data and only reached a base of the game.🔥 0🧊 02.2kEngine Rewrite · PC (classic)OpenLocoChris Sawyer's LocomotionOpen-source re-implementation of Chris Sawyer's Locomotion, the transport-company sim that followed Transport Tycoon.🔥 0🧊 01.9kNative Port · PC (classic)Generals: Zero Hour for macOS, iOS and iPadOSCommand & Conquer: Generals - Zero HourNative port of C&C Generals: Zero Hour to Apple Silicon Macs, iPhone and iPad, with RTS touch controls and a DXVK/MoltenVK renderer.🔥 0🧊 01.7kEngine Rewrite · PC (classic)OpenGothicGothic I-III / Chronicles of MyrtanaOpen-source re-implementation of Gothic 2: Night of the Raven that completes the main quest and addon with modern graphics APIs.🔥 0🧊 01.6kEngine Rewrite · PC (classic)openblackBlack & WhiteOpen-source engine that reimplements Black & White (2001) in modern C++ with OpenGL and Vulkan rendering.🔥 0🧊 01.6kEngine Rewrite · PC (classic)OpenTombTomb Raider I-V (classic)Inactive open-source engine remake for playing classic Tomb Raider 1 to 5 and custom TRLE levels; the authors point to TombEngine.🔥 0🧊 01.4kEngine Rewrite · PC (classic)GemRBBioWare Infinity Engine games (Baldur's Gate, Icewind Dale...)Portable open-source reimplementation of the Infinity Engine behind Baldur's Gate, Icewind Dale and Planescape: Torment.🔥 0🧊 01.3kEngine Rewrite · PC (classic)OpenSpadesAce of Spades 0.75Compatible open-source client for Ace of Spades 0.75 that connects to vanilla, pyspades and pysnip servers.🔥 0🧊 01.2kEngine Rewrite · PC (classic)xoreosBioWare Aurora engine (NWN, KotOR...)Pre-alpha open-source reimplementation of BioWare's Aurora engine, targeting Neverwinter Nights, Knights of the Old Republic and more.🔥 0🧊 01.2kEngine Rewrite · PC (classic)Surreal EngineUnreal Engine 1 gamesReimplementation of Unreal Engine 1 focused on making Unreal (Gold) and Unreal Tournament (UT99) playable.🔥 0🧊 01.1kNative Port · PC (classic)Arx LibertatisArx FatalisCross-platform port of the first-person RPG Arx Fatalis, based on the publicly released source code.🔥 0🧊 01.1kNative Port · PC (classic)LEGO Island PortableLEGO IslandPortable version of LEGO Island 1.1 based on the decompilation, running on desktop, mobile, web and several consoles.🔥 0🧊 01.1kDecomp · PC (classic)GTA San Andreas ReversedGrand Theft Auto: San AndreasHobby project reversing and documenting every function of GTA San Andreas 1.0 US, delivered as a DLL loaded through an ASI loader.🔥 0🧊 01kNative Port · PC (classic)vkDOOM3Doom 3 BFGArchived Vulkan renderer for the GPL DOOM 3 BFG Edition, written as a larger-scale example of how to use Vulkan.🔥 0🧊 0906Engine Rewrite · PC (classic)FalltergeistFallout 2Open-source cross-platform Fallout 2 engine written in C++ and SDL that plays the game with your own data files.🔥 0🧊 0887Engine Rewrite · PC (classic)OpenEnrothMight and Magic VI-VIIIOpen reimplementation of the Might and Magic VI-VIII engine; Might and Magic VII is playable today with MM6 and MM8 planned.🔥 0🧊 0871Engine Rewrite · PC (classic)OpenNFSNeed for Speed (classic series)Early-stage modern engine that unpacks the original data of the classic Need for Speed games 1 to 5 on PC and PSX.🔥 0🧊 0845Engine Rewrite · PC (classic)Aleph OneMarathon 2 (Bungie)Open-source continuation of Bungie's Marathon 2 engine that plays Marathon, Marathon 2, Marathon Infinity and third-party content.🔥 0🧊 0813Engine Rewrite · PC (classic)VangersVangersOpen-source build of Vangers, the racing and RPG hybrid, now on SDL 3 with gamepad support and a TOML settings file.🔥 0🧊 0737Engine Rewrite · PC (classic)Jazz² ResurrectionJazz Jackrabbit 2Native C++ reimplementation of Jazz Jackrabbit 2 for Windows, Linux, macOS, Steam Deck and Android, using your original game files.🔥 0🧊 0715Engine Rewrite · PC (classic)ThymeCommand & Conquer: Generals - Zero HourOpen-source re-implementation of Command & Conquer: Generals - Zero Hour for Windows that aims to fix bugs and enable new platforms.🔥 0🧊 0695Engine Rewrite · PC (classic)REGothGothic I-II (zEngine)Open-source reimplementation of the zEngine behind Gothic and Gothic II; the project has since restarted in a new repository.🔥 0🧊 0654Native Port · PC (classic)DXX-RebirthDescent / Descent IIModern source port of Descent and Descent II for Linux, macOS and Windows, with OpenGL rendering and online multiplayer.🔥 0🧊 0639Engine Rewrite · PC (classic)GLSMACSid Meier's Alpha CentauriUnofficial OpenGL and SDL2 reimplementation of Sid Meier's Alpha Centauri and Alien Crossfire, with a rewritten engine and network code.🔥 0🧊 0638Built on the Code · PC (classic)Plants vs. Zombies Online BattlePlants vs. ZombiesA mod that adds two-player online battle to Plants vs. Zombies, one side as plants and the other as zombies, via DLL injection.🔥 0🧊 0627Native Port · PC (classic)idTech4A++ (Harmattan Edition)Doom 3 / Quake 4 / Prey (2006)Collection of idTech engine ports, led by Doom 3, Quake 4 and Prey, running on Android, Windows and Linux with OpenGL ES.🔥 0🧊 0627Decomp · PC (classic)Touhou 6 DecompilationTouhou 6: Embodiment of Scarlet DevilDecompilation of Touhou 6: Embodiment of Scarlet Devil (version 1.02h) built with the original Visual Studio 2002 toolchain.🔥 0🧊 0613Engine Rewrite · PC (classic)OpenApocX-COM: ApocalypseOpen-source reimplementation of X-COM: Apocalypse in C++ and SDL2 with full mod support, using your original game files.🔥 0🧊 0597Engine Rewrite · PC (classic)Carnage3DGrand Theft Auto (1)Early-stage open-source remake of the original Grand Theft Auto that runs on Windows, Linux and even in the browser.🔥 0🧊 0568Engine Rewrite · PC (classic)JA2 StracciatellaJagged Alliance 2Community-driven port of Jagged Alliance 2 to more platforms, fixing bugs and adding a mod development platform.🔥 0🧊 0540Engine Rewrite · PC (classic)Meridian 59Meridian 59Source code for the classic MMORPG Meridian 59, including the client, server, Blakod compiler and room editor, built with Visual Studio.🔥 0🧊 0518Engine Rewrite · PC (classic)OpenClawCaptain ClawMultiplatform C++ reimplementation of the 1997 platformer Captain Claw, written from scratch to use your original game archive.🔥 0🧊 0515Engine Rewrite · PC (classic)REGoth-bsGothic I-IIRestart of the REGoth project: an open-source reimplementation of the zEngine behind Gothic and Gothic II using modern technologies.🔥 0🧊 0499Native Port · PC (classic)FreeSpace 2 Source Code ProjectFreespace 2Origin repository of the FreeSpace 2 Source Code Project (FS2 Open), the long-running open-source engine for Freespace 2.🔥 0🧊 0490Engine Rewrite · PC (classic)donutThe Simpsons: Hit & RunOpen-source reimplementation of The Simpsons: Hit & Run in modern C++ and OpenGL, using the original game assets.🔥 0🧊 0485Engine Rewrite · PC (classic)Ryzom CoreRyzomOpen-source MMORPG framework on the NeL engine, with the client, server and tools code behind the Ryzom game, maintained by the community.🔥 0🧊 0469Patch / Enhancement · PC (classic)PhobosCommand & Conquer: Red Alert 2 - Yuri's RevengeCommunity engine extension for Command & Conquer: Red Alert 2 - Yuri's Revenge that adds new features and fixes, compatible with Ares.🔥 0🧊 0462Native Port · PC (classic)d3wasmDoom 3Port of the Doom 3 engine to WebAssembly with a WebGL renderer, running id Tech 4 in the browser.🔥 0🧊 0455Decomp · PC (classic)CS16ClientCounter-Strike 1.6Reverse-engineered Counter-Strike 1.6 client for mobile and other unofficially supported platforms, running on Xash3D FWGS.🔥 0🧊 0454Decomp · PC (classic)R.E.L.I.V.E.Oddworld: Abe's Oddysee / ExoddusOpen-source engine replacement for Oddworld: Abe's Oddysee and Abe's Exoddus, aiming at full compatibility, bug fixes and modding tools.🔥 0🧊 0441Decomp · PC (classic)reVCGrand Theft Auto: Vice CityFully reversed source code of GTA Vice City that runs on Windows, Linux, macOS, Android and FreeBSD, with many fixes and widescreen support.🔥 0🧊 0419Engine Rewrite · PC (classic)TheXTechSuper Mario Bros. X (SMBX)C++ rewrite of the Super Mario Bros. X (SMBX 1.3) engine for modern and non-Windows platforms, reproducing the old engine with new features.🔥 0🧊 0418Decomp · PC (classic)cdcEngineDXHRDeus Ex: Human Revolution (cdc engine)Non-matching decompilation of Deus Ex: Human Revolution, cleaned up by hand and buildable on Linux and Windows.🔥 0🧊 0323Engine Rewrite · PC (classic)reoneStar Wars: Knights of the Old Republic I-IIFree, clean-room game engine that runs Star Wars: Knights of the Old Republic and The Sith Lords for play and modding.🔥 0🧊 0315Engine Rewrite · PC (classic)CroftEngineTomb Raider (1)Open-source remake engine for the original Tomb Raider with native controller support, texture packs and online ghosts.🔥 0🧊 0310Engine Rewrite · PC (classic)SourceholdStrongholdEarly-stage open-source engine reimplementation of Stronghold (2001); currently frozen pending the Definitive Edition.🔥 0🧊 0279Engine Rewrite · PC (classic)DGEngineDiabloEngine that runs Diablo 1 and Hellfire from their game files, with support for Diablo Flare, Diablo Extended and a Diablo 2 demo setup.🔥 0🧊 0270Native Port · PC (classic)DOOM: BFA EditionDoom 3 BFGSource port based on RBDOOM-3-BFG that enhances Ultimate DOOM, DOOM 2 and DOOM 3 with modern graphics and options.🔥 0🧊 0268Engine Rewrite · PC (classic)freeaoeAge of Empires IIFree engine in early development for Age of Empires II and other Genie games like Star Wars: Galactic Battlegrounds.🔥 0🧊 0241Engine Rewrite · PC (classic)Zero Hour ReforgedCommand & Conquer: Generals - Zero HourCommand & Conquer: Generals Zero Hour rebuilt from EA's published source as a 64-bit game with bug fixes and a smarter AI.🔥 0🧊 0222Engine Rewrite · PC (classic)OpenAWEAlan Wake (engine)Open-source reimplementation of Remedy's Alan Wake engine (later Northlight), aiming to run Alan Wake and American Nightmare.🔥 0🧊 0220Decomp · PC (classic)CSE2Cave StoryDecompilation of Cave Story with an accurate branch and a portable branch that runs on Windows, Linux, macOS and consoles.🔥 0🧊 0198Engine Rewrite · PC (classic)sh3reduxSilent Hill 3Engine remake of Silent Hill 3 in OpenGL and C++; the README only covers build dependencies.🔥 0🧊 0187Engine Rewrite · PC (classic)D2MOODiablo IIReimplementation of Diablo II (Method and Ordinal Overhaul) with patching tools to help modders understand and change the game.🔥 0🧊 0181Native Port · PC (classic)Descent 3: Piccu EngineDescent 3Quality-of-life engine for Descent 3 built from the 1.5 source release, with widescreen, adjustable FOV, OpenAL audio and many bugfixes.🔥 0🧊 0161Native Port · PC (classic)MechCommander 2 Open Source EngineMechCommander 2Open-source engine and OpenGL Linux port for MechCommander 2, playable through all missions on 64-bit Linux and Windows.🔥 0🧊 0159Engine Rewrite · PC (classic)SMACX Thinker ModSid Meier's Alpha CentauriEngine-feature mod for Alpha Centauri: Alien Crossfire that adds rewritten AI, new options and rendering changes through an extra DLL.🔥 0🧊 0153Decomp · PC (classic)Magic Carpet 2 HDMagic Carpet 2Magic Carpet 2 reverse-engineered from assembly to C/C++, with HD to 4K play, modern controls and a configurator.🔥 0🧊 0151Engine Rewrite · PC (classic)hode (Heart of Darkness)Heart of DarknessReimplementation of the Heart of Darkness engine by Gregory Montoir, running the original Windows data files on modern systems.🔥 0🧊 0150Native Port · PC (classic)openQ4Quake 4Open-source engine and game-code replacement for Quake 4 with widescreen, high refresh rates, optional visual upgrades and real liquids.🔥 0🧊 0149Engine Rewrite · PC (classic)OutpostHDOutpostOpen-source redesign of Sierra's 1994 city-building strategy game Outpost, in active development for Windows with Linux and macOS source builds.🔥 0🧊 0145Native Port · PC (classic)Open Test Drive UnlimitedTest Drive UnlimitedWork-in-progress source port of Test Drive Unlimited (PC, 2006) that aims to fix issues on modern systems and add cross-platform support.🔥 0🧊 0134Decomp · PC (classic)Resident Evil 1 PC DecompilationResident EvilFunctionally complete decompilation of the 1997 PC Resident Evil 1, rebuilt on Direct3D 11 for Windows and OpenGL for Linux.🔥 0🧊 0133Engine Rewrite · PC (classic)Age of Empires Free Software RemakeAge of Empires / Rise of RomeCross-platform free software remake of Age of Empires and Rise of Rome that mimics the Genie engine; only basic multiplayer-style gameplay so far.🔥 0🧊 0131Decomp · PC (classic)tomb3Tomb Raider IIIDecompilation project of the PC version of Tomb Raider III, aimed at preserving the original source code.🔥 0🧊 0118Decomp · PC (classic)Touhou 8: Imperishable Night ReconstructionTouhou 8: Imperishable NightExact source reconstruction of Touhou 8: Imperishable Night 1.00d, with a playable native Linux port and Windows and macOS in progress.🔥 0🧊 0112Native Port · PC (classic)LBA2 Classic CommunityLittle Big Adventure 2Community-maintained source port of the Little Big Adventure 2 engine for Windows, Linux, macOS and Android, with widescreen and HD.🔥 0🧊 0111Engine Rewrite · PC (classic)GorcStar Wars: Jedi Knight - Dark Forces IIEarly-development engine recreation of Star Wars Jedi Knight: Dark Forces II, meant to replace the original executable on new platforms.🔥 0🧊 0110Engine Rewrite · PC (classic)openmw-webThe Elder Scrolls III: MorrowindOpenMW compiled to WebAssembly so Morrowind runs in a desktop browser, with an admin dashboard and experimental multiplayer.🔥 0🧊 0107Decomp · PC (classic)Roblox 2007 Decompilation (RBXGS)Roblox (Nov 2007 client/server)Decompilation of RBXGS, the Roblox Grid Service from November 2007 (version 0.3.634.0), starting with core components.🔥 0🧊 0104Engine Rewrite · PC (classic)TemplePlusTemple of Elemental EvilHooks, extensions and fixes for The Temple of Elemental Evil that modernize the original game's engine.🔥 0🧊 0104Mods & Overhauls · PC (classic)ArkWebBatman: Arkham KnightExperimental mod that brings Spider-Man Remastered's web swinging into Batman: Arkham Knight's Gotham on PC.🔥 0🧊 0166Decomp · PC (classic)LEGO Racers DecompilationLEGO RacersWork-in-progress decompilation of LEGO Racers (1999) that matches the original machine code and builds for 32-bit Windows.🔥 0🧊 093Mods & Overhauls · PC (classic)SA-MP+Grand Theft Auto: San AndreasArchived client modification for GTA: San Andreas that uses the SA-MP plugin SDK to add new server-controlled features such as HUD and radio control.🔥 0🧊 074Recomp · PC (classic)Modern Warfare 2, recompiledCall of Duty: Modern Warfare 2Native PC version of Call of Duty: Modern Warfare 2 (2009) for Windows and Linux, recompiled from the Xbox 360 game, with campaign and friends-only multiplayer.🔥 0🧊 073Decomp · PC (classic)th07 DecompilationTouhou 7: Perfect Cherry BlossomWork-in-progress decompilation of Touhou 7: Perfect Cherry Blossom 1.00b, fully playable, with branches for matching builds and portable ports.🔥 0🧊 059Decomp · PC (classic)th105 ReconstructionTouhou 10.5: Scarlet Weather RhapsodySource reconstruction of Touhou 10.5: Scarlet Weather Rhapsody 1.06a, validated by byte-for-byte comparison against your own executable.🔥 0🧊 058Native Port · PC (classic)OpenPREYPrey (2006)Work-in-progress open-source replacement engine for PREY (2006) built on Quake4Doom, adding widescreen, controller support and modern rendering on your existing copy.🔥 0🧊 057Patch / Enhancement · PC (classic)THPS2 Cumulative PatchTony Hawk's Pro Skater 2Cumulative patch for the PC version of Tony Hawk's Pro Skater 2 adding widescreen, 32-bit color, unlocked FPS, XInput support and custom soundtrack.🔥 0🧊 055Engine Rewrite · PC (classic)Open AnnihilationTotal AnnihilationOpen-source engine for playing Total Annihilation on modern macOS, Windows and Linux with your own game data; Total Annihilation: Kingdoms is on the roadmap.🔥 0🧊 053Decomp · PC (classic)Peggle Deluxe DecompilationPeggle DeluxeWork-in-progress decompilation of the English 1.01 Steam executable of Peggle Deluxe, checked with reccmp and based on the Zuma Deluxe decompilation.🔥 0🧊 052Native Port · PC (classic)th06 SDL2 PortTouhou 6: Embodiment of Scarlet DevilArchived cross-platform port of Touhou 6: Embodiment of Scarlet Devil v1.02h that replaces Direct3D 8 with SDL2 and selectable renderers.🔥 0🧊 047Native Port · PC (classic)OpenCMR2Colin McRae Rally 2.0Work-in-progress native SDL3 port of Colin McRae Rally 2.0 for Linux, Windows, macOS and Android, built on the CMR2Decomp decompilation.🔥 0🧊 045Engine Rewrite · PC (classic)OpenBattlefield2Battlefield 2Clean-room C++20 reimplementation of DICE's Refractor 2 engine, the engine behind Battlefield 2, that reads your own installed copy; a research project in progress.🔥 0🧊 044Native Port · PC (classic)NFS III: Hot Pursuit for AndroidNeed for Speed III: Hot PursuitAndroid port of the 1998 PC game Need for Speed III: Hot Pursuit via static recompilation, with touch controls, split-screen gamepads and Wi-Fi races.🔥 0🧊 043Decomp · PC (classic)TA: Byte TacticsTotal AnnihilationComplete matching decompilation of Total Annihilation: all 3,267 functions rebuilt in C++ that compile to the exact bytes of the original TotalA.exe.🔥 0🧊 037Decomp · PC (classic)SAMP SourceSA-MP (GTA: San Andreas Multiplayer)Software-preservation project rebuilding SA-MP 0.3.7 R5's samp.dll from source, byte for byte, with about 43% of the code verified so far.🔥 0🧊 037Patch / Enhancement · PC (classic)KL2FixKane & Lynch 2: Dog DaysPatch that fixes several issues in the PC port of Kane & Lynch 2: Dog Days, including the noise effect, second-monitor window and high-framerate bugs.🔥 0🧊 037Tools · PC (classic)fastman92 Limit AdjusterGrand Theft Auto III-era gamesModding tool for GTA games that raises hard-coded engine limits, such as IDs, weapons, handling.cfg and cargrp.dat, enabling bigger maps and more content.🔥 0🧊 035Recomp · PC (classic)IsaacRecompThe Binding of IsaacNative C++ recompilation of the original Flash The Binding of Isaac, running at 60 fps and high resolution on PC, Android and Switch from your Steam copy.🔥 0🧊 033Mods & Overhauls · PC (classic)gta-maxoutGrand Theft Auto: Vice CityC++ library for GTA: Vice City total conversions that extends map boundaries, water, pathfinding and radar, and doubles as an engine API for modders.🔥 0🧊 032Decomp · PC (classic)Touhou 9.5: Shoot the Bullet ReconstructionTouhou 9.5: Shoot the BulletSource reconstruction of the original Japanese Touhou 9.5: Shoot the Bullet 1.02a, with a playable reconstructed Windows build and function-level byte comparison.🔥 0🧊 023Recomp · PC (classic)TDURETest Drive UnlimitedEarly static recompilation of Test Drive Unlimited (Xbox 360) built with the rexglue SDK, with a build released later.🔥 0🧊 019Engine Rewrite · PC (classic)uo-clientUltima OnlineFrom-scratch Ultima Online T2A client in C++17 built for bot automation, with a software renderer that recreates the 1997-era look.🔥 0🧊 018Decomp · PC (classic)Colin McRae Rally 2.0 DecompilationColin McRae Rally 2.0Matching decompilation of Colin McRae Rally 2.0 (PC, 2000), rebuilt with MSVC6 and verified against the original executable, with an SDL3 port planned.🔥 0🧊 017Decomp · PC (classic)Heroes of Might and Magic III DecompilationHeroes of Might and Magic IIIWork-in-progress matching C++ decompilation of HEROES3.EXE from Heroes of Might and Magic III Complete, about 98.9% matched by code size.🔥 0🧊 017Decomp · PC (classic)Sheep, Dog 'n' Wolf DecompilationSheep, Dog 'n' WolfByte-matching decompilation of the 2001 PC game Sheep, Dog 'n' Wolf (Sheep Raider) with a mod loader and a 3D level editor.🔥 0🧊 016Engine Rewrite · PC (classic)OpenEmperorEmperor: Rise of the Middle KingdomEarly clean-room reimplementation of Emperor: Rise of the Middle Kingdom in C++20 and SDL3, starting on Apple Silicon macOS and needing original game data.🔥 0🧊 015