← Back to Awesome

Sections

Game Remakes

GitHub repository ↗ synced 2026/8/9

Awesome Game Remakes Awesome

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.

If you are looking for game archive file formats see: Awesome Game File Format Reversing

If you are looking for not only remakes have a look at:


Action

Carnage3D

Reimplementation of Grand Theft Auto.

donut

Reimplementation of The Simpsons: Hit & Run in modern C++ and modern OpenGL.

Heretic2R

Heretic II (1998, Raven Software) reverse-engineered source port.

heretic2

Heretic2 playground sandbox.

OpenJK

Community effort to maintain and improve Jedi Academy and Jedi Outcast by Raven Software.

Speed-Academy

Source port of the singleplayer of Star Wars Jedi Knight: Jedi Academy.

Speed-Outcast

Source port of the singleplayer of Star Wars Jedi Knight II: Jedi Outcast.

OpenChaos

OpenChaos — Fan Modernization of Urban Chaos

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.

Sunny-Survival-Remake-Code

Code for my game called "Sunny Survival Remake"

TOMB5

Tomb Raider: Chronicles disassembly translated to C source code.

TR1X

Open source implementation of the classic Tomb Raider I game.

Adventure

DetectiveDS

A remake of the original C64 classic The Detective Game for Nintendo DS.

Dusklight

Dusklight is a reverse-engineered reimplementation of Twilight Princess.

lba1-classic

Little Big Adventure: Twinsen's Adventure Definitive Edition

lba2-classic-community

Little Big Adventure 2 engine source code.

lba2remake

A Little Big Adventure 2 / Twinsen's Odyssey reimplementation in JavaScript / Three.js / React.

ScummVM

Allows you to run certain classic graphical point-and-click adventure games such Maniac Mansion and Monkey Island.

twin-e

TwinEngine: a Little Big Adventure engine.

timeco

Time Commando Reimplementation

Arcade

AcidDrop

Remake of classic Atari 2600 game "Acid Drop".

atomiks

A remake of the classic Atomix game for modern platforms.

Barbarian

Open-source clone of Barbarian: The Ultimate Warrior.

Battle City

Browser reimplementation of Namco's 1985 Battle City (Famicom version), built from a full annotated 6502 disassembly. Playable at https://battle-city.berrry.app. :flower_playing_cards:

blips

A Remake of the dos Bips, Bips Gold and Bips Platinum game from Bryant Brownell. It is a Puzzle game which is a variation of sokoban written in SDL 3 based on my old gp2x version.

C-Dogs SDL

Classic overhead run-and-gun game. :flower_playing_cards:

Crimsonland

Faithful from-scratch rewrite of the twin-stick shooter Crimsonland.

galaxy-eggbert

3D remake of Speedy Blupi / Mobile Eggbert, moving from Urho3D toward a native CNA + Easy3D engine.

guardian

A modern, endless remake of the classic arcade game Defender

GradiusRemake

Remake of the game Gradius (NES - 1986)

Maze-Runner-FPS

Remake of classic Maze Runner game from the 70s -- written in Rust

Metal-Slug-Remake

A Metal Slug-inspired 2D action game built in C++ with SFML — featuring enemy AI, procedural terrain via Perlin noise, and a full weapon/damage system. OOP course project (CS-1004).

Mr.Boom

8-player Bomberman clone for RetroArch/Libretro.

O21

FOSS remake of U95, an old submarine arcade game from 1995.

OrbitalDecay

This is a 3D remake of the old Lunar Lander game

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:

openomf

One Must Fall 2097 Remake.

OpenTyrian

An open-source port of Tyrian from Turbo Pascal to C. :flower_playing_cards:

Retro-Arcade-Remakes

C++ retro arcade remakes showcasing clean OOP design, game loops, collision systems, and state management.

SpaceRox.MX2

2D Asteroids Style Game using MX2.

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.

WarhawkDS

Warhawk DS remake of the C64 game Warhawk to the Nintendo DS in native assembler.

wedges-trial

[WIP] Browser logic puzzle game inspired by Gothic's Remake lockpicking mechanism.

FPS

4TAK

client and server based on q2pro-rerelease and q2pro

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.

Barrett

Advanced and featureful Rise of the Triad source port for modern systems.

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.

Chasm-Reverse

"PanzerChasm" is a free recreation of the game "Chash: - The Rift" by "ActionForms" using the original game data (CSM.BIN file).

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.

DOOM64-EX-Plus-Enhanced

fork of the Doom 64 EX+ engine, Its main goal is to show what the Doom 64 engine would have looked like if it hadn't been limited by the N64 console.

DOOM64EXUltra

A fork of DOOM 64 EX+ with new stuff and fixes

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:

DSDA-Doom

A successor of prboom+ with extra tooling for demo recording and playback, with a focus on speedrunning and quality of life.

DukeGDX

Duke Nukem 3D port.

ericw-tools

Quake/Hexen 2 Map compiling tools.

ECWolf

Port of Wolfenstein 3D based on Wolf4SDL.

EDGE-classic

Cross-Platform OpenGL Doom Source Port with powerful modding features.

Eduke32

Source port of Duke Nukem 3D and the BUILD Engine.

ezQuake

Combining the features of all modern QuakeWorld clients, ezQuake makes QuakeWorld easier to start and play.

FreeCS

Free-software re-implementation of Counter-Strike 1.5 running on the FTEQW engine. :flower_playing_cards:

Freedoom

Free software FPS based on the classic DOOM engine. :flower_playing_cards:

FnQ3

FnQ3 • Fappin' Quake 3 • Modernized sourceport for QUAKE III: ARENA

FnQL

FnQL • Fappin' QUAKE LIVE • Modernized sourceport for QUAKE LIVE

FTEQW

FPS Engine for Quake 1, QuakeWorld, Quake 2, Hexen II & Quake III Arena.

ew-progs

Eternal War: Shadows of Light's progs source code.

ew-engine

Eternal War: Shadows of Light's engine source code.

heavymetal

A static recompilation of Heavy Metal: FAKK2 (2000) targeting modern Windows 11 x86-64.

Hexen II: Hammer of Thyrion

Cross-platform port of the Hexen II game.

idTech4A++ (Harmattan Edition)

DOOM III/Quake 4/Prey(2006) GLES on Android/Windows/Linux, DOOM 3 BFG/The Dark Mod/RTCW/Quake 1 2 3/GZDOOM/ETW/RealRTCW/OpenJK/SeriousSam/Skin Deep on Android.

ioquake3

The free software FPS engine that can be used to play Quake 3, or make your own game.

iortcw

Source port of Return to Castle Wolfenstein.

ironwail

High-performance QuakeSpasm fork.

jfsw

Port of the 3D Realms game "Shadow Warrior".

jftekwar

No-promises port of the Capstone Software game "TekWar".

jfwhaven

No-promises port of the Capstone Software game "Witchaven".

lilium-arena

Lilium Arena - Compatible with Quake 3 Arena 1.32.

lilium-salvation

An engine replacement for [Dark Salvation](https://mangledeyestudios.itch.io/dark-salvation)

lilium-voyager

An engine replacement for Star Trek Voyager: Elite Force Holomatch (multiplayer).

mint-arena

Spearmint Quake 3 and Team Arena game code.

mint-metal

Incomplete (unusable for practical purposes) Heavy Metal F.A.K.K.² / American McGee's Alice game code for Spearmint.

NBlood

Port of the classic FPS Blood.

NearChuckle

A Linux port of Far Cry 1.

Oblivion-Reconstructed

Reverse-engineered Oblivion Extension Pack source code for original Quake II.

OmegA-engine

Modern OpenArena engine based on Quake3e

OmegA-mod

OmegA mod for OpenArena

OpenChasm

Free software reconstruction of Chasm: The Rift game.

Odamex

Online multiplayer DOOM port with a strong focus on the original gameplay while providing a breadth of enhancements. :flower_playing_cards:

OpenMoHAA

Open re-implementation of Medal of Honor: Allied Assault including Spearhead and Breakthrough expansions.

openQ4

The modern binary replacement for QUAKE 4.

openQ4-game

openQ4 game libraries

OpenSpades

Compatible client of Ace of Spades, a voxel FPS.

qk1

Modernized Quake for Unix-like operating systems and 9front.

qk1

quake 1 and quakeworld port for plan9.

q2tools-220

Quake 2 map compiler tools with v220 map support, automatic phong, enhancements, and fixes.

Q2RTXPerimental

My 'Experimental' fork of NVIDIA’s implementation of RTX ray-tracing in Quake II

qfusion

This is Warsow's fork of qfusion, the id Tech 2 derived game engine.

quake3-rust-edition

id Tech 3 reimagined in Rust — multiplayer FPS with lag compensation, TDM, demos, and ultra-wide support.

Quake3e

Improved Quake III Arena engine.

quakeforge

QuakeForge is descended from the original Quake engine as released by Id Software in December 1999, and can be used to play original Quake and QuakeWorld games and mods (including many modern mods).

QuakeSpasm

A modern, cross-platform Quake game engine.

Raze

Build engine port backed by GZDoom tech. Currently supports Duke Nukem 3D, Blood, Shadow Warrior, Redneck Rampage and Powerslave/Exhumed.

RBDOOM-3-BFG

Doom 3 BFG Edition with soft shadows, cleaned up source, Linux and 64 bit Support.

realice

Heavy Metal F.A.K.K. 2 / American McGee's Alice reverse engineered.

REBLIVION

Unofficial ported and enhanced Oblivion Extension Pack for Quake II: Rerelease.

RedneckGDX

Port of Redneck Rampage.

SeriousSamClassic-VK

Open source game engine for Serious Sam Classic with Vulkan support.

SeriousSamAlphaRemake

Serious Sam Alpha Remake open source project based.

spearmint

Spearmint — an updated id Tech 3 engine for continuing the classics and creating new games.

SurrealEngine

The goal of this project is to reimplement enough of the original Unreal Engine to make the Unreal Tournament (UT99) maps playable.

Taradino

SDL2 port of Rise of the Triad.

The Eternity Engine

Advanced DOOM source port. :flower_playing_cards:

The Force Engine

Jedi Engine for modern systems and the games that used that engine - Dark Forces and Outlaws.

Tremulous110e

Improved Tremulous 1.1.0 engine based on ioquake3

tremulous

Latest Tremulous based on GrangerHub/tremulous

Tyrquake

Libretro port of Tyrquake.

UZDoom

Modder-friendly OpenGL and Vulkan source port based on the DOOM engine. :flower_playing_cards:

MadnessPatch

A patch that fixes various issues in the PC port of Alice: Madness Returns.

VorpalFix

A patch that addresses various technical issues and adds quality-of-life improvements to the 2011 remaster of American McGee's Alice.

vkQuake

Vulkan Quake port based on QuakeSpasm.

xash3d-fwgs

Xash3D FWGS engine

Yamagi Quake II

Enhanced client for id Software's Quake II with focus on offline and coop gameplay.

Zandronum

Multiplayer oriented port, based off Skulltag, for Doom and Doom II. Also runs Heretic, Hexen and Strife. :flower_playing_cards:

Online

2006rebotted

A 2006 RuneScape 2 Emulation Server. :flower_playing_cards:

2004scape

A free & open-source remake of 2004 era RuneScape 2. :flower_playing_cards:

2009scape

A free & open-source remake of 2009 era RuneScape 2. :flower_playing_cards:

ACEmulator

A custom, completely from-scratch open source server emulator for Asheron’s Call built on C#. :flower_playing_cards:

FreeSO

Reimplementation of The Sims Online, targetted mainly at mobile devices. :flower_playing_cards:

Meridian 59

The first 3D MMORPG, released in 1996 and open sourced in 2012. The original codebase for Meridian 59.

Opengate

Remake of Jumpgate.

OpenRSC

Open source accurate RuneScape Classic (2001-2003) game server in Java, based on recorded data and videos. :flower_playing_cards:

RSC-C

Rewrite of the RuneScape Classic (2001-2003) game client in portable C. :flower_playing_cards:

RuneLite

Open source Old School RuneScape (OSRS) client. :flower_playing_cards:

Ryzom Core

Ryzom Core contains the whole code (client, server, tools) used to make the commercial MMORPG Ryzom. :flower_playing_cards:

Space Station 14

Space Station 14 is a revived attempt at a Space Station 13 remake.

starcup

A fork of the multiplayer game Space Station 14, a remake of the cult-classic Space Station 13.

VoxeLibre

Stable, moddable & free/libre clone of Minecraft based on the Luanti engine. :flower_playing_cards:

Netrek

Netrek is a multiplayer battle simulation game with a Star Trek theme. Up to 16 players are divided into two teams that fight each other for dominion over the galaxy.

  • Heart-of-Africa-Remake Single-player 3D web remake of the 1985 classic The Heart of Africa: real ~1890 geography, living wildlife, period journal with in-browser TTS - three.js/WebGPU, React, TypeScript.

RPG

Abyss Engine

Abyss Engine is a game engine designed to run games similar to 2000's style ARPGs such as Diablo II.

Amber

Engine for the Amber trilogy

Ambermoon.net

Ambermoon rewrite in C#

Arianne RPG

Arianne is an engine to develop multiplayer online games like Stendhal

Arx Libertatis

Cross-platform port of Arx Fatalis, a first-person role-playing game.

Barony

Open source release of Barony.

BtBuilder

An open source implementation of the Bard's Tale Construction Set.

castarook

Experience 3D chess with RPG combat, dynamic terrain, and dice-driven battles blending strategy and role-playing elements in a living game world.

ChaosEsqueAnthology

A free 3d game for PC that does not limit the player. Fight,Build,Gain

Daggerfall Unity

Recreation of Daggerfall in the Unity engine.

Devilution

Reconstructed form of Diablo's original source code.

DevilutionX

Diablo build for modern operating systems.

DGEngine

Implementation of the Diablo game engine.

Exult

Project to recreate Ultima 7 for modern operating systems.

Falltergeist

Crossplatform Fallout 2 game engine writen in C++ and SDL.

Freeablo

Open-source implementation of the Diablo engine.

FreeFT

Real-time, isometric action game engine inspired by Fallout Tactics.

GemRB

Portable open-source reimplementation of the Infinity Engine (used by Baldur's Gate, Icewind Dale and more).

OpenEnroth

Might and Magic VI-VIII engine remake using original data & code.

OpenGothic

Reimplementation of Gothic 2: Night of the Raven.

OpenMW

Reimplementation of the Morrowind game engine.

OpenNox

Collaboration project extending the Nox engine.

OpenTESArena

Modern engine reimplementation of The Elder Scrolls: Arena by Bethesda Softworks.

OpenVIII

Final Fantasy VIII engine implementation in C#.

REGoth

An open source reimplementation of zEngine the engine behind Gothic and Gothic II.

Riiablo

Diablo II remade using Java and LibGDX.

sfall

A set of engine modifications for the classic game Fallout 2.

Shockolate

Same great System Shock, new great taste.

Thirdeye

Reimplementation of AESOP that runs Eye of the Beholder 3 and Dungeon Hack.

UAlbion

Remake of 1995 Albion.

UnderworldGodot

An engine recreation of Ultima Underworld and Ultima Underworld 2 in the Godot Engine.

WitchavenGDX

Witchaven Java port.

xoreos

Implementation of BioWare's Aurora engine and its derivatives (used by Neverwinter Nights, The Witcher and more).

Zelda3

This is a reverse engineered clone of Zelda 3 - A Link to the Past.

zorkClone

Reimplementation of the original Zork game developed by Infocom.

Platformer

Alive Reversing

Reimplementation of Oddworld: Abe's Exoddus.

BanjoRecomp

PC Port of Banjo-Kazooie made using N64: Recompiled.

Commander Genius

Modern Interpreter for the Commander Keen Games. :flower_playing_cards:

Ghostship

Super Mario 64 reimplementation for PC.

Jak Project

The project's goal is to port the original trilogy (Jak 1 -> Jak 3) to PC.

Jazz² Resurrection

Reimplementation of Jazz Jackrabbit 2.

Lionheart Remake

Java remake of Lionheart Amiga game.

ManicMinerLL

A re-working of Manic Miner onto the DS using levels created for other official computer released versions.

NXEngine-evo

Rewrite of the masterpiece jump-and-run platformer Doukutsu Monogatari (also known as Cave Story).

Omnispeak

Reimplementation of Commander Keen in Goodbye Galaxy.

Prince-Monogame

Monogame implementation of Prince of Persia 2.

SDLPoP

Port of Prince of Persia, based on the disassembly of the DOS version.

sm64js

Super Mario 64 reimplementation in JavaScript.

The Secret Chronicles of Dr. M

Adaptation of Secret Mario Chronicles. :flower_playing_cards:

UnleashedRecomp

An unofficial PC port of the Xbox 360 version of Sonic Unleashed created through the process of static recompilation.

VVVVV

The source code to VVVVVV.

Racing

Reburn 3

A work-in-progress open source reimplementation of Burnout 3: Takedown.

dRally

Open Source Engine / Death Rally [1996]

DreeRally

Death Rally engine reimplementation.

dethrace

Reverse engineering the 1997 game "Carmageddon"

hi-octane202x

Hi-Octane with level editor using Irrlicht engine.

HiOctaneTools

Tools to inspect and modify levels of the game Hi-Octane by Bullfrog (1995).

Open76

Interstate '76 engine reimplementation

OpenNFS

Attempt to recreate the classic Need for Speed Games (1-6).

OutRun

A new version of the game Out Run of 1986 for PC using SFML and C++

tube64

64-bit vesion of DOS game Tube (Bullfrog, 1994)

SpagettiKart

Reimplementation of Mario Kart 64 for PC.

Vangers

Racing/RPG hybrid made open-source by its creators, written in C++.

Vange-rs

The idea of this project is to replicate the old look and behavior of Vangers, but with native hardware acceleration for the graphics.

wipEout Rewrite

This is a re-implementation of the 1995 PSX game wipEout. :flower_playing_cards:

retruxx

Reverse engineered Hard Truck Apocalypse.

Simulator

darknova2

Dark Nova ][ — cross-platform space trading game (Space Trader remake)

Descent3

Descent 3 by Outrage Entertainment

DXX-Rebirth

Source port of the Descent and Descent 2 Engines for Windows, macOS, Linux.

dxx-redux

Descent 1&2 source port based on DXX-Retro.

dxx-vr

Descent 1&2 VR source port based on DXX-Retro

FLUF

Freelancer Universal Framework

freelancer-retold

A campaign and gameplay rework for the 2003 game Freelancer.

forsaken-3ds

Nintendo 3DS port of Forsaken (1998)

ForsakenX

Forsaken game engine.

ForsakenW

The Forsaken source code.

Free Stars: The Ur-Quan Masters

Open source version of the classic Star Control 2.

FS2Open

FreeSpace2 Source Code Project.

Librelancer

Reimplementation of the 2003 space game Freelancer.

Endless Sky

Space exploration, trading, and combat game.

pizzalegacy

Pizza Legacy is an open-source reimplementation of the 1994 DOS game Pizza Tycoon (released as Pizza Connection in Germany).

Strategy

aeon

Open-source browser god-game & civilization sim where every creature is a real, evolving neural network. Fusion of WorldBox (god sandbox) and Civ (deep progression) - lead a people in Survival or shape the world in Creative. Artificial life, genetic evolution, emergent societies.

1oom

1oom is a Master of Orion Classic (1993) game engine recreation that requires the original files to run.

Allure

A massive HJSON mod focusing around quick-action, immersive RTS gameplay. Lore package included.

Ancient Beast

Spiritual successor to Heroes of Might and Magic III focusing on combat; matched based eSport.

Antares

Remake of Ares, a tactical space combat game.

Beyond-All-Reason

Open source RTS game built on top of the Recoil RTS Engine

CivOne

Implementation of Sid Meier's Civilization.

Unciv

Open-source Android/Desktop remake of Civ V.

OpenCiv3

OpenCiv3 is an open-source, cross-platform, mod-oriented, modernized remake of Civilization III by the fan community built with the Godot Engine and C#.

freeciv

Freeciv is a Free and Open Source empire-building strategy game inspired by the history of human civilization.

freecivworld

Freecivworld.net is the 3D version of Freeciv.

CzechDraughts

Cross-platform Czech Draughts (Česká Dáma) game implemented as a C# console application.

CorsixTH

Clone of Theme Hospital with support for modern operating systems, high resolutions and much more.

Cortex Command Community Project Source

Community-driven effort to continue the development of Cortex Command.

ChaosGame

chaotic 2D real-time strategy game built from scratch. Command units with random skills, unlock advanced tech trees, and survive the tactical onslaught.

durer-jatekok

Online version of previous strategy games at Dürer Competition

Dune-II---The-Maker

A remake of the classic Dune 2 - The Building of a Dynasty (by Westwood Studios) with several enhancements. Like: higher screenresolutions, zooming, multiselect, skirmish play, etc.

Dune Legacy

Updated clone of Westood Studios' Dune2 which uses data files from the original game.

DungeonKeeper

Dungeon Keeper C#

DungeonKeeperReborn

Dungeon Keeper Reborn in TypeScript

Dungeon Keeper Remake

A modern remake of Dungeon Keeper

Evolution-RTS

Evolution RTS is a free an Open Source RTS game designed using the Spring Engine.

fheroes2

Free implementation of Heroes of Might and Magic II game engine.

EmperorReborn

Play Emperor: Battle for Dune on Windows 10 and 11 with real 16:9 widescreen, fullscreen and working multiplayer. Free, open-source launcher and patcher for the Westwood Dune RTS.

Flame

Dungeon Keeper II partial recompilation with bug fixes.

freeserf.net

Settlers 1 clone written in C#

FreeCol

Turn-based strategy game based on the old game Colonization.

galaxyofdrones

An open source multiplayer space strategy game.

GeneralsGameCode

Command and Conquer: Generals - Zero Hour

GLKeeper

Open Source Dungeon Keeper 2 Reimplementation

GLSMAC

Unofficial open-source OpenGL/SDL2 reimplementation of Sid Meier's Alpha Centauri ( + Alien Crossfire ).

grenzmark

Grenzmark is a Godot 4 remake of the Settlers II, Return to the Roots and Widelands

green-turkiye

Raise awareness of environmental pollution in Turkiye through this engaging strategy game designed to inspire action and promote sustainability.

grid-wars

AI-generated TRON-themed 3D hex strategy game (three.js): single-player vs the MCP + online multiplayer. Untested — use at your own risk.

hex-tactics

PIXI.js + React hex-grid tactical battle sandbox — procedural strategic/tactical worlds, a pure-function battle engine, 5 motion modes, and a defendHeight formation system.

invazion

Azimutant (formerly named "InvaZion") is a collaborative game inspired by Hordes.fr/Die2Nite.

Jagged Alliance Stracciatella

Makes Jagged Alliance 2 available on a wide range of platforms.

JS.Hawkoniwa-Island

A homemade island development game inspired by "箱庭諸島". Supports auto-save.

Julius

Reimplementation of Caesar III.

KaM Remake

RTS game remake of Knights and Merchants written in Delphi from scratch.

KeeperFX

Open source remake and Fan Expansion of Dungeon Keeper.

keeperfx-linux-alpha

KeeperFX — Tux Edition · the native Linux build of KeeperFX (Dungeon Keeper). No Wine/Proton/DOSBox — one AppImage. Unofficial, community-maintained, re-synced with upstream.

KeeperRL

Roguelike dungeon builder inspired by Dwarf Fortress.

kiomet

Kiomet.com real-time strategy game (repository commits may lag behind game updates)

machines

Community fork of Machines: Wired for War

maxr

A turn based strategy game.

mc2

Mech Commander 2 open source engine + OpenGL Linux port.

MegaGlest

MegaGlest real-time strategy game engine (cross-platform, 3-d).

Mindustry

The automation tower defense RTS written in Java

openage

Clone of the Age of Empires II engine.

OpenApocalypse

Rebuild of the X-COM: Apocalypse engine.

openblack

Reimplementation of Black & White.

OpenDungeonsPlus

Open source game inspired by Dungeon Keeper - Dark, damp and dangerous...

OpenE2140

Remake of Earth 2140 based on [the OpenRA engine](https://github.com/OpenRA/OpenRA)

OpenDUNE

Recreation of the popular game Dune II.

Open Fodder

Open-source implementation of Cannon Fodder.

OpenKeeper

Dungeon Keeper II remake in Java.

OPHD

OutpostHD - Open source remake of Sierra On-Line's Outpost.

OpenHV

Open-source implementation of Hard Vacuum. :flower_playing_cards:

OpenKrush

Remake of KKnD (Krush, Kill 'n' Destroy) and KKnD2 based on [the OpenRA engine](https://github.com/OpenRA/OpenRA)

OpenLoco

Reimplementation of Chris Sawyer's Locomotion.

Open Panzer

HTML5 Panzer General 2. :flower_playing_cards:

OpenRA

Implementation of the Red Alert engine using .NET/mono and OpenGL. Runs on Windows, Linux and macOS.

OpenRAG-Skill

Enable evidence-first retrieval augmented generation within Claude Code using prompt-only input and in-chat source material.

OpenCrystalCaves

OCC is an unofficial open source engine reimplementation of the game trilogy Crystal Caves.

OpenLRR

An open source re-implementation of LEGO Rock Raiders

OpenFrontIO

Online browser-based RTS game

OpenRCT2

Recreation of RollerCoaster Tycoon 2.

Open-Realms-of-Stars

4X Strategy game.

OpenSA

Remake of Swarm Assault based on [the OpenRA engine](https://github.com/OpenRA/OpenRA)

OpenSAGE

C# reimplementation of SAGE, the game engine used by a bunch of EA Pacific games, including Command & Conquer: Generals and Battle for Middle Earth.

opensage-adk

Build AI agents with self-made tools, hierarchical memory, and sandboxed execution for software engineering tasks

OpenSC2K

Remake of SimCity 2000 by Maxis.

OpenTPW

An open-source re-implementation of Bullfrog's Sim Theme Park / Theme Park World (1999).

OpenTTD

OpenTTD is a transport simulation game based upon the popular game Transport Tycoon Deluxe, written by Chris Sawyer. :flower_playing_cards:

OpenXcom

Clone of UFO: Enemy Unknown and X-COM: Terror From the Deep.

OutpostHD

Remake of Sierra On-Line's Outpost.

Ozymandias

An open source re-implementation of Pharaoh in the Julius/Augustus engine.

parabellum

An attempt to build a #Travian 3.x clone written in #Rust.

permafrost-engine

An OpenGL RTS game engine written in C based on Everglory

Populous: Reincarnated

Populous Reincarnated

Populous The Beginning

Open Repository For A Bullfrog Productions Game

PopRE Bug Tracker

Populous The Beginning Reincarnated Open Source Bug Tracker

Populous The Beginning - Multiverse

Populouse Multiverse Launcher

PopResourceEditor

Open-source asset editor and manager written in C++ for Bullfrog's Populous: The Beginning game, designed to preview, modify, and generate the game assets.

rebellion2

Remake of the classic Star Wars Rebellion game for PC using Unity

Pillage-First-Ask-Questions-Later

An open-source, single-player, Travian alternative browser strategy game, inspired by [Travian T4](https://ts4.x1.europe.travian.com/) and [Travian Kingdoms](https://www.kingdoms.com/)

Race into Space

Version of Interplay's Buzz Aldrin's Race into Space.

Rescue Max!

A 2D space real-time, action/strategy game. you are in control of a ship that you fly around space fighting enemies and making friends on your way. The main objective is to rescue people from planets and take them to star bases. its writen in java1.4.

Return To The Roots

Settlers II remake written in C++.

Rotp-Fusion

Created by Ray Fowler, Remnants of the Precursors is an open-source modernization of the original 1993 Master of Orion.

rise-of-legions

Rise of Legions is a hybrid of MOBA, tower defense and deckbuilding - with fast-paced, easy-to-pickup tug-of-war strategy. Play solo or bring a friend for co-op or 2v2, collect cards, build your deck and crush your enemies.

Scorched Earth Online War

Online War system for IL-2 Sturmovik and Iron Front in ArmA 2

Seven Kingdoms: Ambition

An enhanced version of 7K:AA (Seven Kingdoms: Ancient Adversaries).

Shattered Paradise

Remake of C&C Tiberian Sun based on [the OpenRA engine](https://github.com/OpenRA/OpenRA)

simutrans

Simutrans is a freeware and open-source transportation simulator. :flower_playing_cards:

singularity

A simulation of a true AI. Survive, grow, and learn.

Syndicate Wars

Syndicate Wars Fan Expansion, Open Source remake of the classic Bullfrog game.

Romanov's Vengeance

Remake of C&C Red Alert 2 based on [the OpenRA engine](https://github.com/OpenRA/OpenRA)

Sourcehold

Implementation of Stronghold by Firefly Studios.

Stone Kingdoms

A real-time strategy game made with LÖVE based on the original Stronghold by Firefly studios.

terra-concordia-public

Press kit, release notes & community resources for Terra Concordia — a digital eurogame by NCB Company.

TheOldWorld

2D Isometric RTS Game

thinker

Improved game engine features for SMACX.

Transarctica-2

Remake of the classic game Transarctica (In development)

triplea

TripleA is a turn based strategy game and board game engine, similar to Axis & Allies or Risk.

Tribal Trouble

Tribal Trouble is a realtime strategy game released by Oddlabs in 2004. In 2014 the source was released under GPL2 license.

ufoai

UFO: Alien Invasion

Ugh-Guys-

A browser-based, StarCraft-style asymmetric RTS set in a mythic pre-flood world — Three.js + Vite, three factions, fog of war, pathfinding, and an AI opponent. 100% procedural, no external assets.

Unvanquished

Unvanquished is a free and open source FPS/RTS hybrid game powered by the Daemon game engine. Historically based on Tremulous as a continuation with decades of work over it.

VanillaConquer

Command and Conquer and Red Alert original release source port based on the remaster source code drop.

vaultfront

VaultFront is a browser RTS and a derived AGPL fork of OpenFrontIO, itself evolved from WarFront.io. Created with help from ChatGPT 5.4 and Codex.

VCMI

Engine for Heroes of Might and Magic III.

vera20k

Red Alert 2: Yuri's Revenge — rebuilt from scratch in Rust for large multiplayer battles.

Wages of War

A clean-room, open-source Rust reverse enginering of the Wages of War: The Business of Battle (1996) engine.

war1

A remake of Warcraft: Orcs & Humans written in C

War8

Turn-based abstract board game built with C++ and SFML, based on "Război în 8" from Nicolae Oprișiu’s "Olimpiada Jocurilor Raționale" ("The Olympiad of Rational Games", Chapter 10). Includes PvP, PvC, CvC, turn timer, HUD, leaderboard, themes, and Easy/Hard AI.

Wargus

Warcraft 2 Mod that allows you to play Warcraft 2 with the Stratagus engine.

WarKingdoms

Unity RTS Prototype (Warcraft 3 Style)

Warzone 2100

Free and open-source real time strategy game. :flower_playing_cards:

WazzaP's Boss Generals Mod

The official repository of WazzaP's Boss Generals mod for C&C Generals Zero Hour

Zed Online

Remake of the 1996 classic game Z.

Zero-K

Open source RTS game running on the Spring/Recoil engine