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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Stone Kingdoms

Clone of Stronghold

An actively developed, open-source isometric remake of Firefly Studios' Stronghold, built in the LÖVE engine.

Platforms:None

Stars166

Updated1 month ago

Licenseapache-2.0

Release2017

Genre: Real-Time Strategy

Theme: Medieval

Sporadic

openc2e

Clone of Creatures

An open-source engine for the Creatures artificial life games; it needs the original data files and is still in progress.

Platforms:WindowsLinuxOSX

Stars166

Updated4 months ago

LicenseLGPL-2.1

Release2020

Genre: Simulation

Theme: —

Active

No preview

The Legend of Zelda: Skyward Sword

Clone of The Legend of Zelda: Skyward Sword

A work-in-progress decompilation of Skyward Sword for Wii, supporting only the NTSC-U 1.0 release and requiring your own disc image.

Platforms:Wii

Stars165

Updated14 days ago

LicenseCC0-1.0

Release2024

Genre: Action

Theme: —

Active

CaveExpress / CavePacker

Clone of Sokoban

A repo with two games: CaveExpress, a physics platformer, and CavePacker, a Sokoban puzzle, both playable across desktop, mobile, and web.

Platforms:WebWindowsLinux

Stars164

Updated14 days ago

LicenseUnknown

Release2014

Genre: Puzzle

Theme: —

Archived

No preview

ElonaFoobar

Clone of Elona

A C++ variant of Elona derived from version 1.22, with a mod system and multi-language support; development was archived early.

Platforms:WindowsLinuxOSX

Stars164

Updated5 years ago

LicenseMIT

Release2018

Genre: Roguelike

Theme: Fantasy

Halted

King under the Mountain

Clone of King under the Mountain

A Java game built with LibGDX, originally developed by Rocket Jump Technology and released open source under the MIT license.

Platforms:Windows

Stars164

Updated2 years ago

LicenseMIT

Release2020

Genre: Simulation

Theme: —

Halted

Nuvie

Clone of Ultima VI

An open-source engine for Ultima 6, Martian Dreams and The Savage Empire that uses the original data files, now part of ScummVM.

Platforms:WindowsLinuxOSX

Stars164

Updated1 year ago

LicenseGPL-2.0

Release2015

Genre: RPG

Theme: —

Halted

bab-be-u

Clone of Baba Is You

A very early fan game inspired by Baba Is You, built with LOVE2D, letting players rearrange rule blocks to change gameplay.

Platforms:WindowsLinuxOSX

Stars164

Updated3 years ago

LicenseMIT

Release2019

Genre: Puzzle

Theme: —

Halted

sokoban-rs

Clone of Sokoban

A Rust implementation of Sokoban using SDL2; levels aren't included and must be downloaded separately.

Platforms:None

Stars164

Updated5 years ago

LicenseApache-2.0

Release2015

Genre: Puzzle

Theme: —

Halted

2048-in-terminal

Clone of 2048

A terminal-based clone of 2048 written in C for Linux, using the ncurses library to draw the board.

Platforms:Linux

Stars162

Updated3 years ago

LicenseMIT

Release2014

Genre: Puzzle

Theme: —

Active

LixD

Clone of Lemmings

LixD is the actively maintained Lix, a Lemmings-inspired puzzle game with 700+ levels and real-time multiplayer for up to 8 players.

Platforms:WindowsLinuxOSX

Stars162

Updated16 days ago

LicenseUnknown

Release2015

Genre: Puzzle

Theme: —

Active

X-Moto

Clone of Elasto Mania

X-Moto is an open-source, physics-based 2D motocross platformer with online world-record replays and custom levels.

Platforms:WindowsLinuxOSX

Stars162

Updated1 month ago

LicenseGPL-2.0

Release2017

Genre: Platform

Theme: —

Halted

No preview

Days of Thunder NES

Clone of Days of Thunder

Recovered source code for an unpublished NES Days of Thunder, distinct from the 1990 Mindscape release, from Chris Oberth's archives.

Platforms:NES

Stars161

Updated6 years ago

LicenseUnknown

Release2020

Genre: Racing

Theme: —

Active

No preview

Super Mario World 2: Yoshi's Island (SNES) Disassembly

Clone of Yoshi's Island

A complete, byte-for-byte disassembly of Yoshi's Island's SNES code -- CPU, Super FX, and sound -- verified against a clean US ROM.

Platforms:SNES

Stars160

Updated1 month ago

LicenseUnknown

Release2016

Genre: Action

Theme: —

Active

No preview

Descent 3: Piccu Engine

Clone of Descent 3

A new engine for Descent 3 built from its 1.5 source release, adding windowed modes, adjustable FOV, and an improved sound system.

Platforms:Windows

Stars159

Updated1 month ago

LicenseGPL-3.0

Release2024

Genre: FPS

Theme: Sci-Fi

Active

No preview

OUO

Clone of Ultima Online

A C99 reverse-engineered rebuild of the 1998 Ultima Online demo server, aiming to recreate the game as it ran in June 1998.

Platforms:Windows

Stars159

Updated24 days ago

LicenseUnknown

Release2020

Genre: MMORPG

Theme: —

Active

OpenTPW

Clone of Theme Park World

An early, not-yet-playable re-implementation of Theme Park World that uses the original game's assets.

Platforms:Windows

Stars159

Updated20 days ago

LicenseMIT

Release2019

Genre: Simulation

Theme: Management

Halted

No preview

SpelunkyPSP

Clone of Spelunky Classic

A ground-up C++/OpenGL rewrite of Spelunky Classic, ported natively to PSP, Android, and desktop.

Platforms:WebWindowsLinux

Stars159

Updated1 year ago

LicenseUnknown

Release2019

Genre: Roguelike

Theme: —

Active

No preview

eZeus

Clone of Zeus: Master of Olympus

An open-source reimplementation of Zeus: Master of Olympus and its Poseidon expansion, requiring the original game's data files.

Platforms:WindowsLinuxOSX

Stars159

Updated17 days ago

LicenseGPL-3.0

Release2021

Genre: Strategy

Theme: Ancient History

Halted

minecraft-threejs-clone

Clone of Minecraft

A simple browser-based Minecraft clone built with Three.js, made to teach developers alongside a video tutorial series.

Platforms:Web

Stars159

Updated2 years ago

LicenseUnknown

Release2023

Genre: Action

Theme: Fantasy

Halted

Anodyne 2: Return to Dust

Clone of Anodyne 2: Return to Dust

Analgesic Productions' own release of the Unity source code for Anodyne 2: Return to Dust, effectively open source for most uses.

Platforms:WindowsLinuxOSX

Stars158

Updated2 years ago

LicenseUnknown

Release2024

Genre: Action

Theme: Fantasy

Active

No preview

JXQY-all-in-one

Clone of Jianxia Qingyuan 2

A cross-platform C++17 runtime and editing toolchain for the Jianxia Qingyuan wuxia game series, targeting five platforms.

Platforms:WindowsLinuxOSX

Stars158

Updated24 days ago

LicenseGPL-3.0

Release2018

Genre: RPG

Theme: Martial Arts

Sporadic

Serious Sam Classic: Vulkan

Clone of Serious Sam: The First Encounter

A Vulkan-rendering fork of the open-source Serious Engine for playing Serious Sam Classic on modern systems.

Platforms:WindowsLinuxOSX

Stars158

Updated8 months ago

LicenseGPL-2.0

Release2022

Genre: FPS

Theme: —

Halted

Free in the Dark

Clone of Alone in the Dark

A from-scratch reimplementation of the Alone in the Dark engine, requiring the original games' data files to run.

Platforms:Windows

Stars156

Updated1 year ago

LicenseGPL-2.0

Release2021

Genre: Action

Theme: Horror

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