Free & Open Source Clones & Remakes of Retro Games

3,241 open-source clones and remakes of 1,919 retro games — real source code you can read, fork, and play today, not just a free download.

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Archived

NorseWorld: Ragnarok

Clone of Ragnarok

A Norse-mythology roguelike remake of 1990s DOS game Ragnarok, with six classes and randomly generated worlds.

Platforms:Windows

Stars48

Updated2 years ago

LicenseGPL-3.0

Release2015

Genre: Roguelike

Theme: Fantasy

Archived

OpenLGR

Clone of Lego Racers

An archived loader that runs Lego Racers through CPU emulation and patched-in open-source code, still needing the original game.

Platforms:Windows

Stars48

Updated8 years ago

LicenseGPL-2.0

Release2017

Genre: Racing

Theme: —

Sporadic

Strange Adventures in Infinite Space

Clone of Strange Adventures in Infinite Space

A GPL3 continuation of Digital Eel's 2002 roguelike Strange Adventures in Infinite Space, still maintained today.

Platforms:WindowsLinuxOSX

Stars48

Updated4 months ago

LicenseGPL-3.0

Release2020

Genre: Roguelike

Theme: —

Halted

No preview

TurokEX

Clone of Turok

Platforms:None

Stars48

Updated12 years ago

LicenseGPL2*

Release2012

Genre: FPS

Theme: —

Halted

No preview

eleven-server

Clone of Glitch

eleven-server is a work-in-progress Node.js game server for Eleven Giants that can currently only run a limited portion of the game.

Platforms:None

Stars48

Updated3 years ago

LicenseMIT

Release2014

Genre: MMORPG

Theme: —

Halted

Divercity

Clone of SimCity

Divercity is a Java extension of MicropolisJ (the Micropolis/SimCity port) built by nine students during a 2014 course in Berlin.

Platforms:None

Stars47

Updated11 years ago

LicenseGPL-3.0

Release2014

Genre: Simulation

Theme: Management

Halted

No preview

Donkey Kong hacking kit

Clone of Donkey Kong

Donkey Kong Hacking Kit is an in-progress commented disassembly of the arcade game's Z80/i8035 code, still incomplete and unusable.

Platforms:Arcade

Stars47

Updated12 years ago

LicenseUnknown

Release2014

Genre: Platform

Theme: —

Active

No preview

Mechanized Assault & eXploration Reloaded

Clone of M.A.X.

MAXR is a fan-made, community-maintained turn-based strategy remake of M.A.X., built to make multiplayer work reliably on modern systems.

Platforms:Windows

Stars47

Updated3 months ago

LicenseUnknown

Release2023

Genre: Real-Time Strategy

Theme: —

Halted

No preview

Revenge of the Titans

Clone of Revenge of the Titans

Puppy Games' official Revenge of the Titans source release, source code only — no game assets included.

Platforms:None

Stars47

Updated14 years ago

LicenseUnknown

Release2011

Genre: tower defense

Theme: —

Halted

No preview

Spacebase DF-9 v2

Clone of Spacebase DF-9

A community-maintained Lua fork of Double Fine's Spacebase DF-9, patched from 2015 through a final 2023 release.

Platforms:WindowsLinux

Stars47

Updated3 years ago

Licensecpal-1.0

Release2015

Genre: Simulation

Theme: —

Sporadic

No preview

jsFO

Clone of Fallout 2

jsFO is a discontinued, pre-alpha browser port of Fallout 2 built with HTML5 canvas, meant as a technical demo, not a full port.

Platforms:Web

Stars47

Updated5 months ago

LicenseUnknown

Release2015

Genre: RPG

Theme: —

Halted

No preview

stfdisasm

Clone of Sonic the Fighters

A disassembly of Sega's 1996 arcade fighter Sonic the Fighters' program ROM, nearly six years in the making, requiring original ROM files.

Platforms:Arcade

Stars47

Updated2 years ago

LicenseUnknown

Release2020

Genre: Fighting

Theme: —

Halted

2048Haskell

Clone of 2048

2048Haskell is a terminal implementation of 2048 written in Haskell with Stack, including a bot option that can play automatically.

Platforms:None

Stars46

Updated8 years ago

LicenseBSD-3-Clause

Release2017

Genre: Puzzle

Theme: —

Halted

Arduino UNO Game Engine

Clone of Manic Miner

Arduino UNO Game Engine is a custom 2D engine for the Arduino UNO, playable with ports of Manic Miner, Scramble, and Space Invaders.

Platforms:Arduino

Stars46

Updated2 years ago

LicenseGPL-3.0

Release2024

Genre: Platform

Theme: Fantasy

Active

No preview

MegaManX5Recomp

Clone of Mega Man X5

A static recompilation of Mega Man X5 (PS1) into a native Windows program, playable in alpha with widescreen and renderer options.

Platforms:WindowsLinuxOSX

Stars46

Updated16 days ago

LicenseUnknown

Release2026

Genre: Platform

Theme: —

Halted

Quick Curver

Clone of Achtung, die Kurve!

A hardware-accelerated, C++/Qt6 remake of Achtung, die Kurve! with local/online multiplayer, bots, and items.

Platforms:WindowsLinux

Stars46

Updated2 years ago

LicenseGPL-3.0

Release2016

Genre: Arcade

Theme: —

Halted

No preview

kings-quest-3

Clone of King's Quest III

This is an official King's Quest III repository under the historicalsource GitHub organization, with no further README detail.

Platforms:DOS

Stars46

Updated3 years ago

LicenseUnknown

Release2022

Genre: Adventure

Theme: Fantasy

Active

Achtung, die Kurve! Classic

Clone of Achtung, die Kurve!

This is a browser-based recreation of Achtung, die Kurve! written in Elm, playable at kurve.se with a legacy JS build too.

Platforms:Web

Stars45

Updated2 months ago

LicenseAGPL-3.0

Release2016

Genre: Arcade

Theme: —

Active

No preview

Gikopoipoi

Clone of Gikopoi

Gikopoipoi is a web-based Node.js application hosted live at gikopoipoi.net, with no further gameplay detail given in its README.

Platforms:Web

Stars45

Updated16 days ago

LicenseUnknown

Release2015

Genre: —

Theme: —

Halted

No preview

Hardwar

Clone of Hardwar

This is a pre-alpha remake of the sci-fi flight-sim game Hardwar, with no playable build yet, built via Bower and CMake.

Platforms:WindowsLinuxOSX

Stars45

Updated10 years ago

LicenseGPL-3.0

Release2011

Genre: Action

Theme: Sci-Fi

Active

Maelstrom

Clone of Asteroids

Maelstrom is a licensed open-source SDL3 port of Ambrosia's Asteroids-style shooter, adding online multiplayer and touch controls.

Platforms:WebWindowsLinux

Stars45

Updated3 months ago

LicenseUnknown

Release2022

Genre: Arcade

Theme: —

Active

Tribal Trouble Resurrected

Clone of Tribal Trouble

A free, actively developed community revival of Tribal Trouble with 12-player online play, remastered graphics, and new features.

Platforms:WindowsLinuxOSX

Stars45

Updated13 days ago

LicenseGPL-2.0

Release2025

Genre: Real-Time Strategy

Theme: —

Halted

ebiten-mines

Clone of Minesweeper

ebiten-mines is a Minesweeper remake written in Go with the Ebiten v2 library, playable in the browser via WebAssembly.

Platforms:Web

Stars45

Updated2 years ago

LicenseMIT

Release2021

Genre: Puzzle

Theme: —

Active

elifoot98web

Clone of Elifoot 98

Elifoot 98 Online runs the original DOS game in-browser via js-dos virtualization as a non-profit fan preservation project.

Platforms:Web

Stars45

Updated18 days ago

LicenseMIT

Release2023

Genre: Sports

Theme: Management

* Unverified license (our read or source dataset) — check the repository itself.

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Minecraft

2009Action

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Doom

1993FPS

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Quake

1996FPS

id Software's fully-3D follow-up to Doom — its GPL-released source (QuakeC included) made it one of the most forked engines in open-source gaming.

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Super Mario

1985Platform

The NES platformer that made side-scrolling mainstream — open-source engines recreate its physics and level format down to the pixel.

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Legend of Zelda - A Link to the Past

1991Action

The SNES classic that set the template for top-down action-adventure — its engine and tile format have been reverse-engineered many times over.

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Diablo II

2000RPG

Blizzard North's dungeon-crawler that defined the ARPG genre — reverse-engineered projects like OpenDiablo2 rebuild it from the original assets up.

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Grand Theft Auto

1998Action

The open-world franchise everyone's talking about again — its early file formats and engines have been reverse-engineered for years, well before GTA 6 hype.

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StarCraft

1998Real-Time Strategy

Blizzard's 1998 real-time strategy game that helped build esports as we know it — open-source engines keep its campaign and balance playable today.

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Sonic the Hedgehog

1991Platform

Sega's answer to Mario — its physics and level format have been painstakingly reverse-engineered by fan projects for decades.

7 clones to play