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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mkxp-z

Clone of RPG Maker

An extended fork of mkxp that runs RPG Maker (RGSS) games, including Pokémon Essentials projects, across platforms.

Platforms:WindowsLinuxOSX

Stars377

Updated2 months ago

LicenseGPL-2.0

Release2021

Genre: RPG

Theme: —

Active

No preview

BStone

Clone of Blake Stone: Aliens of Gold

BStone is an actively maintained source port of the Blake Stone series, adding high-res 3D rendering, texture upscaling, and 3D audio.

Platforms:WindowsLinuxOSX

Stars367

Updated1 month ago

LicenseUnknown

Release2013

Genre: FPS

Theme: Sci-Fi

Halted

Duke 2 Reconstructed

Clone of Duke Nukem II

Duke 2 Reconstructed is a from-scratch reconstruction of Duke Nukem II's source code from disassembly, producing a byte-identical binary.

Platforms:DOS

Stars367

Updated1 year ago

LicenseGPL-2.0

Release2022

Genre: Platform

Theme: Sci-Fi

Active

No preview

Dune II - The Maker

Clone of Dune 2

Dune II - The Maker is an actively maintained Dune 2 remake built with CMake and GCC, with documented builds for Windows, Ubuntu, and macOS.

Platforms:WindowsLinuxOSX

Stars364

Updated12 days ago

LicenseUnknown

Release2012

Genre: Real-Time Strategy

Theme: Sci-Fi

Active

No preview

Pikmin 2

Clone of Pikmin 2

A work-in-progress decompilation of Pikmin 2 whose non-matching build can be modded by editing its C++ source.

Platforms:GameCube

Stars364

Updated13 days ago

LicenseCC0-1.0

Release2021

Genre: Real-Time Strategy

Theme: Fantasy

Active

Open-Ko

Clone of Knight Online

An academic, early-stage rebuild of the Knight Online MMORPG client and server from its leaked source, targeting version 1298/9.

Platforms:Windows

Stars360

Updated1 month ago

LicenseMIT

Release2016

Genre: MMORPG

Theme: —

Archived

No preview

OpenMW for Android

Clone of The Elder Scrolls III: Morrowind

An archived Android port of the OpenMW engine for playing Morrowind on phones and tablets.

Platforms:Android

Stars360

Updated4 years ago

LicenseGPL-3.0

Release2018

Genre: RPG

Theme: Fantasy

Active

Vega Strike

Clone of Elite

An open-source space trading and combat simulator with entirely original assets, inspired by the classic game Elite.

Platforms:Linux

Stars360

Updated12 days ago

LicenseUnknown

Release2015

Genre: Action

Theme: Sci-Fi

Archived

2048-python

Clone of 2048

2048-python is an archived, read-only Python remake of 2048 built with the Tkinter GUI toolkit.

Platforms:None

Stars358

Updated5 years ago

LicenseMIT

Release2014

Genre: Puzzle

Theme: —

Active

2048 Open Fun Game

Clone of 2048

A free, ad-free multiplatform remake of 2048 written in Kotlin with the KorGe engine, building for Android, desktop, web, and iOS.

Platforms:Android

Stars354

Updated2 months ago

LicenseApache-2.0

Release2020

Genre: Puzzle

Theme: —

Sporadic

pacman-canvas

Clone of Pac-Man

An HTML5 Pac-Man remake playable in the browser, with scatter/chase ghost modes and online highscores.

Platforms:Web

Stars352

Updated7 months ago

LicenseCC0-1.0

Release2012

Genre: Arcade

Theme: —

Halted

MinecraftC

Clone of Minecraft

A C port of Minecraft Classic 0.0.30a using SDL2 and OpenGL, with optional raytracing in its modded build.

Platforms:WindowsOSX

Stars349

Updated1 year ago

LicenseMIT

Release2021

Genre: Action

Theme: Fantasy

Halted

OpenSWE1R

Clone of Star Wars Episode I: Racer

A partial open-source port of Star Wars Episode I: Racer that uses CPU emulation to run the original game cross-platform.

Platforms:Windows

Stars347

Updated6 years ago

LicenseGPL-2.0

Release2017

Genre: Racing

Theme: Sci-Fi

Active

No preview

Tomb Engine

Clone of Tomb Raider

An open-source custom level engine for classic-style Tomb Raider levels, needing no original game assets.

Platforms:Windows

Stars343

Updated12 days ago

LicenseUnknown

Release2018

Genre: Platform

Theme: —

Sporadic

FTE QuakeWorld

Clone of Hexen II

FTEQW is an advanced, portable open-source engine for idTech games like Quake, Quake II, and III, with servers holding hundreds of players.

Platforms:WindowsLinux

Stars341

Updated3 months ago

LicenseGPL-2.0

Release2021

Genre: FPS

Theme: Ancient History

Halted

No preview

DOS Raptor

Clone of Raptor: Call of the Shadows

DOS Raptor is the original DOS source code for Raptor: Call of the Shadows, using an open replacement for its proprietary audio library.

Platforms:DOS

Stars340

Updated2 years ago

LicenseGPL-2.0

Release2023

Genre: Shmup

Theme: —

Active

No preview

Dr. Robotnik's Ring Racers

Clone of Mario Kart

Dr. Robotnik's Ring Racers is a free kart racing game on the Sonic Robo Blast 2 codebase, released as non-commercial fan art under GPL.

Platforms:WindowsLinuxOSX

Stars340

Updated26 days ago

LicenseGPL-2.0

Release2024

Genre: Racing

Theme: —

Archived

No preview

UnderworldExporter

Clone of Ultima Underworld

A now-halted Unity tool for playing Ultima Underworld 1 and 2 with original game files; active development moved to a Godot rewrite.

Platforms:Windows

Stars340

Updated2 years ago

LicenseMIT

Release2014

Genre: RPG

Theme: Fantasy

Halted

No preview

Doom Classic for iOS

Clone of Doom

id Software's free GPL source-code release of DOOM Classic for iOS, not including any game data, which remains under the original EULA.

Platforms:iOS

Stars339

Updated10 years ago

LicenseGPL-2.0

Release2014

Genre: FPS

Theme: Sci-Fi

Halted

Freeserf

Clone of The Settlers

Freeserf is a remake that requires the original DOS or Amiga data files to run, playable on Windows, Linux, and macOS.

Platforms:WindowsLinuxOSX

Stars338

Updated2 years ago

LicenseGPL-3.0

Release2011

Genre: Real-Time Strategy

Theme: Medieval

Active

Dust Racing 2D

Clone of Micro Machines

Dust Racing 2D is a tile-based, cross-platform top-down racing game in Qt and OpenGL, with up to 11 AI opponents across three game modes.

Platforms:Linux

Stars334

Updated1 month ago

LicenseGPL-3.0

Release2015

Genre: Racing

Theme: —

Halted

F.LF

Clone of Little Fighter 2

F.LF is a clean-room reimplementation of Little Fighter 2 for the web, with eleven playable characters and peer-to-peer multiplayer.

Platforms:Web

Stars334

Updated2 years ago

LicenseGPL-3.0

Release2015

Genre: Fighting

Theme: —

Active

three-quake

Clone of Quake

A browser-playable Three.js port of Quake, bundling shareware Episode 1 and supporting the full game with your own data.

Platforms:Web

Stars333

Updated1 month ago

LicenseGPL-2.0

Release2026

Genre: FPS

Theme: Fantasy

Active

No preview

Open Rails

Clone of Microsoft Train Simulator

A free, open-source train simulator for Windows built to run the widest possible range of existing train and route content.

Platforms:Windows

Stars331

Updated13 days ago

LicenseGPL-3.0

Release2018

Genre: Simulation

Theme: —

People are curious about clones of...

Games you know, and the open-source projects that recreate them.

View all originals

Minecraft

2009Action

The block-building sandbox that reshaped an entire genre — open-source clones range from full Java reimplementations to engines built from scratch.

41 clones to play

Doom

1993FPS

The 1993 shooter that defined the genre and sparked a modding culture still alive today — its source release made it one of gaming's most-cloned engines.

40 clones to play

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.

20 clones to play

Super Mario

1985Platform

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

20 clones to play

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.

17 clones to play

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.

6 clones to play

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.

3 clones to play

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.

4 clones to play

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