Awesome Game Remakes 
Actively maintained open-source game remakes.
Most games require original asssets. The ones not requiring paid assets are marked with :flower_playing_cards:.
If you are also interested in clones and similar games (0 A.D. etc.), take a look at Open Source Game Clones.
Contents
Action
- Carnage3D - Reimplementation of Grand Theft Auto.
- donut - Reimplementation of The Simpsons: Hit & Run in modern C++ and modern OpenGL.
- OpenJK - Community effort to maintain and improve Jedi Academy and Jedi Outcast by Raven Software.
- OpenLara - Classic Tomb Raider open-source engine.
- OpenMB - Role-playing game engine for Taleworlds' Mount&Blade Series.
- OpenRW - A cross-platform, open source re-implementation of Rockstar Games' Grand Theft Auto III.
- remc2 - Reverse engineering of Magic Carpet 2 from Assembler.
- Rigel Engine - Modern reimplementation of the classic DOS game Duke Nukem II in C++.
- San Andreas Unity - Reimplementation of GTA: San Andreas game engine in Unity.
- TOMB5 - Tomb Raider: Chronicles disassembly translated to C source code.
- TR1X - Open source implementation of the classic Tomb Raider I game.
Adventure
- ScummVM - Allows you to run certain classic graphical point-and-click adventure games such Maniac Mansion and Monkey Island.
Arcade
- Barbarian - Open-source clone of Barbarian: The Ultimate Warrior.
- C-Dogs SDL - Classic overhead run-and-gun game. :flower_playing_cards:
- Mr.Boom - 8-player Bomberman clone for RetroArch/Libretro.
- OpenClonk - Multiplayer action game where you control small and nimble humanoids.
- OpenJazz - Free, open-source version of the classic Jazz Jackrabbit™ games.
- Open Kick-Off - Rewriting attempt of the cult football game Kick Off 2. :flower_playing_cards:
- OpenTyrian - An open-source port of Tyrian from Turbo Pascal to C. :flower_playing_cards:
- Taisei - Fan-made, open-source clone of the Touhou series. :flower_playing_cards:
- The Great Escape in C - Classic ZX Spectrum game The Great Escape in portable C. :flower_playing_cards:
- Zelda Classic - A game and editing tool that lets you create custom Legend of Zelda quests.
FPS
- Aleph One - The open source continuation of Bungie’s Marathon 2 game engine.
- Allegiance - Allegiance is RTS and FPS Space Combat game.
- BetterSpades - Ace Of Spades open source implementation that runs on older machines.
- BStone - A source port of Blake Stone: Aliens Of Gold and Blake Stone: Planet Strike.
- CatacombGL - Windows source port of Catacomb 3D and the Catacomb Adventure series.
- Chocolate Doom - Source port that is minimalist, historically accurate and includes ports of Heretic and Hexen, and Strife. :flower_playing_cards:
- Chocolate Quake - A purist Quake source port that restores the original look and feel of v1.09 and earlier.
- ClassiCube - Minecraft Classic compatible client written in C from scratch. :flower_playing_cards:
- Crispy Doom - A limit-removing enhanced-resolution Doom source port based on Chocolate Doom.
- dhewm3 - A source port of Doom 3.
- Doom Legacy - One of the most popular DOOM source ports, which enhances it with things like TCP/IP networking, OpenGL renderer etc. :flower_playing_cards:
- DoomRetro - Classic, refined DOOM source port for Windows PC. :flower_playing_cards:
- Doomsday Engine - Source port of id Software's DOOM I/II and Raven Software's Heretic and Hexen. :flower_playing_cards: