Reimplementation of Grand Theft Auto.
Reimplementation of The Simpsons: Hit & Run in modern C++ and modern OpenGL.
Community effort to maintain and improve Jedi Academy and Jedi Outcast by Raven Software.
Classic Tomb Raider open-source engine.
Role-playing game engine for Taleworlds' Mount&Blade Series.
A cross-platform, open source re-implementation of Rockstar Games' Grand Theft Auto III.
Original Tomb Raider 1-5 experience with contemporary updates, features and additions.
Reversed source code for GTA III and GTA: Vice City.
Reverse engineering of Magic Carpet 2 from Assembler.
Modern reimplementation of the classic DOS game Duke Nukem II in C++.
Reimplementation of GTA: San Andreas game engine in Unity.
Tomb Raider: Chronicles disassembly translated to C source code.
Open source implementation of the classic Tomb Raider I game.
Open-source clone of Barbarian: The Ultimate Warrior.
Classic overhead run-and-gun game. :flowerplayingcards:
8 player Bomberman clone for RetroArch/Libretro.
Rewriting attempt of the cult football game Kick Off 2. :flowerplayingcards:
Multiplayer action game where you control small and nimble humanoids.
Free, open-source version of the classic Jazz Jackrabbit™ games.
An open-source port of Tyrian from Turbo Pascal to C. :flowerplayingcards:
Fan-made, open-source clone of the Touhou series. :flowerplayingcards:
Classic ZX Spectrum game The Great Escape in portable C. :flowerplayingcards:
A game and editing tool that lets you create custom Legend of Zelda quests.
Allegiance is RTS and FPS Space Combat game.
Ace Of Spades open source implementation that runs on older machines.
A source port of Blake Stone: Aliens Of Gold and Blake Stone: Planet Strike.
Windows source port of Catacomb 3D and the Catacomb Adventure series.
Source port that is minimalist, historically accurate and includes ports of Heretic and Hexen, and Strife. :flowerplayingcards:
Minecraft Classic compatible client written in C from scratch. :flowerplayingcards:
One of the most popular DOOM source ports, which enhances it with things like TCP/IP networking, OpenGL renderer etc. :flowerplayingcards:
Classic, refined DOOM source port for Windows PC. :flowerplayingcards:
Source port of id Software's DOOM I/II and Raven Software's Heretic and Hexen. :flowerplayingcards:
Duke Nukem 3D port.
Port of Wolfenstein 3D based on Wolf4SDL.
Combining the features of all modern QuakeWorld clients, ezQuake makes QuakeWorld easier to start and play.
Free-software re-implementation of Counter-Strike 1.5 running on the FTEQW engine. :flowerplayingcards:
Free software FPS based on the classic DOOM engine. :flowerplayingcards:
FPS Engine for Quake 1, QuakeWorld, Quake 2, Hexen II & Quake III Arena.
Modder-friendly OpenGL and Vulkan source port based on the DOOM engine. :flowerplayingcards:
Cross-platform port of the Hexen II game.
The free software FPS engine that can be used to play Quake 3, or make your own game.
Port of the classic FPS Blood.
A Linux port of Far Cry 1.
Online multiplayer DOOM port with a strong focus on the original gameplay while providing a breadth of enhancements. :flowerplayingcards:
Open re-implementation of Medal of Honor: Allied Assault including Spearhead and Breakthrough expansions.
Compatible client of Ace of Spades, a voxel FPS.
A modern, cross-platform Quake game engine.
Doom 3 BFG Edition with soft shadows, cleaned up source, Linux and 64 bit Support.
Port of Redneck Rampage.
The goal of this project is to reimplement enough of the original Unreal Engine to make the Unreal Tournament (UT99) maps playable.
Advanced DOOM source port. :flowerplayingcards:
Jedi Engine for modern systems and the games that used that engine - Dark Forces and Outlaws.
Libretro port of Tyrquake.
Enhanced client for id Software's Quake II with focus on offline and coop gameplay.
Multiplayer oriented port, based off Skulltag, for Doom and Doom II. Also runs Heretic, Hexen and Strife. :flowerplayingcards:
A free & open-source remake of 2004 era RuneScape 2. :flowerplayingcards:
A 2006 RuneScape 2 Emulation Server. :flowerplayingcards:
A free & open-source remake of 2009 era RuneScape 2. :flowerplayingcards:
A custom, completely from-scratch open source server emulator for Asheron’s Call built on C#. :flowerplayingcards:
Reimplementation of The Sims Online, targetted mainly at mobile devices. :flowerplayingcards:
The first 3D MMORPG, released in 1996 and open sourced in 2012. The original codebase for Meridian 59.
Stable, moddable & free/libre clone of Minecraft based on the Minetest engine. :flowerplayingcards:
Remake of Jumpgate.
Open source accurate RuneScape Classic (2001-2003) game server in Java, based on recorded data and videos. :flowerplayingcards:
Rewrite of the RuneScape Classic (2001-2003) game client in portable C. :flowerplayingcards:
Open source Old School RuneScape (OSRS) client. :flowerplayingcards:
Ryzom Core contains the whole code (client, server, tools) used to make the commercial MMORPG Ryzom. :flowerplayingcards:
Space Station 14 is a revived attempt at a Space Station 13 remake.
Reimplementation of Oddworld: Abe's Exoddus.
Modern Interpreter for the Commander Keen Games. :flowerplayingcards:
Reimplementation of Jazz Jackrabbit 2.
Java remake of Lionheart Amiga game.
Rewrite of the masterpiece jump-and-run platformer Doukutsu Monogatari (also known as Cave Story).
Reimplementation of Commander Keen in Goodbye Galaxy.
Monogame implementation of Prince of Persia 2.
Port of Prince of Persia, based on the disassembly of the DOS version.
Super Mario 64 reimplementation in JavaScript.
Adaptation of Secret Mario Chronicles. :flowerplayingcards:
An unofficial PC port of the Xbox 360 version of Sonic Unleashed created through the process of static recompilation.
The source code to VVVVVV.
Abyss Engine is a game engine designed to run games similar to 2000's style ARPGs such as Diablo II.
Cross-platform port of Arx Fatalis, a first-person role-playing game.
Open source release of Barony.
An open source implementation of the Bard's Tale Construction Set.
Recreation of Daggerfall in the Unity engine.
Reconstructed form of Diablo's original source code.
Diablo build for modern operating systems.
Implementation of the Diablo game engine.
Project to recreate Ultima 7 for modern operating systems.
Crossplatform Fallout 2 game engine writen in C++ and SDL.
Open-source implementation of the Diablo engine.
Real-time, isometric action game engine inspired by Fallout Tactics.
Portable open-source reimplementation of the Infinity Engine (used by Baldur's Gate, Icewind Dale and more).
Might and Magic VI-VIII engine remake using original data & code.
Reimplementation of Gothic 2: Night of the Raven.
Reimplementation of the Morrowind game engine.
Collaboration project extending the Nox engine.
Modern engine reimplementation of The Elder Scrolls: Arena by Bethesda Softworks.
Final Fantasy VIII engine implementation in C#.
An open source reimplementation of zEngine the engine behind Gothic and Gothic II.
Diablo II remade using Java and LibGDX.
A set of engine modifications for the classic game Fallout 2.
Same great System Shock, new great taste.
Remake of 1995 Albion.
An engine recreation of Ultima Underworld and Ultima Underworld 2 in the Godot Engine.
Witchaven Java port.
Implementation of BioWare's Aurora engine and its derivatives (used by Neverwinter Nights, The Witcher and more).
This is a reverse engineered clone of Zelda 3 - A Link to the Past.
Reimplementation of the original Zork game developed by Infocom.
Death Rally engine reimplementation.
Attempt to recreate the classic Need for Speed Games (1-6).
A work-in-progress open source reimplementation of Burnout 3: Takedown.
The idea of this project is to replicate the old look and behavior of Vangers, but with native hardware acceleration for the graphics.
Racing/RPG hybrid made open-source by its creators, written in C++.
This is a re-implementation of the 1995 PSX game wipEout. :flowerplayingcards:
Source port of the Descent and Descent 2 Engines for Windows, macOS, Linux.
Open source version of the classic Star Control 2.
FreeSpace2 Source Code Project.
Reimplementation of the 2003 space game Freelancer.
Spiritual successor to Heroes of Might and Magic III focusing on combat; matched based eSport.
Remake of Ares, a tactical space combat game.
Implementation of Sid Meier's Civilization.
Clone of Theme Hospital with support for modern operating systems, high resolutions and much more.
Community-driven effort to continue the development of Cortex Command.
Free implementation of Heroes of Might and Magic II game engine.
Turn-based strategy game based on the old game Colonization.
Unofficial open-source OpenGL/SDL2 reimplementation of Sid Meier's Alpha Centauri ( + Alien Crossfire ).
Makes Jagged Alliance 2 available on a wide range of platforms.
Reimplementation of Caesar III.
RTS game remake of Knights and Merchants written in Delphi from scratch.
Open source remake and Fan Expansion of Dungeon Keeper.
Roguelike dungeon builder inspired by Dwarf Fortress.
Open-source implementation of Cannon Fodder.
HTML5 Panzer General 2. :flowerplayingcards:
Clone of the Age of Empires II engine.
Rebuild of the X-COM: Apocalypse engine.
Reimplementation of Black & White.
Recreation of the popular game Dune II.
Remake of Earth 2140 based on the OpenRA engine
Open-source implementation of Hard Vacuum. :flowerplayingcards:
Remake of KKnD (Krush, Kill 'n' Destroy) and KKnD2 based on the OpenRA engine
Reimplementation of Chris Sawyer's Locomotion.
Implementation of the Red Alert engine using .NET/mono and OpenGL. Runs on Windows, Linux and macOS.
Recreation of RollerCoaster Tycoon 2.
Remake of Swarm Assault based on the OpenRA engine
C# reimplementation of SAGE, the game engine used by a bunch of EA Pacific games, including Command & Conquer: Generals and Battle for Middle Earth.
Remake of SimCity 2000 by Maxis.
OpenTTD is a transport simulation game based upon the popular game Transport Tycoon Deluxe, written by Chris Sawyer. :flowerplayingcards:
Clone of UFO: Enemy Unknown and X-COM: Terror From the Deep.
Remake of Sierra On-Line's Outpost.
An open source re-implementation of Pharaoh in the Julius/Augustus engine.
Version of Interplay's Buzz Aldrin's Race into Space.
Settlers II remake written in C++.
Remake of C&C Red Alert 2 based on the OpenRA engine
Remake of C&C Tiberian Sun based on the OpenRA engine
Implementation of Stronghold by Firefly Studios.
A real-time strategy game made with LÖVE based on the original Stronghold by Firefly studios.
Command and Conquer and Red Alert original release source port based on the remaster source code drop.
Engine for Heroes of Might and Magic III.
Warcraft 2 Mod that allows you to play Warcraft 2 with the Stratagus engine.
Free and open-source real time strategy game. :flowerplayingcards:
Remake of the 1996 classic game Z.