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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New clones and notable updates, roughly monthly. No spam, unsubscribe anytime.

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libRealSpace

Clone of Strike Commander

libRealSpace is a cross-platform reimplementation of Origin Systems' RealSpace engine, also used by Strike Commander.

Platforms:WindowsLinuxOSX

Stars45

Updated15 days ago

LicenseUnknown

Release2022

Genre: Action

Theme: Modern Military

Halted

No preview

mike-tysons-punch-out-disassembly

Clone of Mike Tyson's Punch-Out!!

A disassembly of NES Mike Tyson's Punch-Out!! that reassembles into binaries matching the original game.

Platforms:NES

Stars45

Updated6 years ago

LicenseUnknown

Release2020

Genre: Sports

Theme: —

Halted

pitfall-js

Clone of Pitfall!

A browser remake of Activision's 1982 Atari 2600 game Pitfall!.

Platforms:Web

Stars45

Updated1 year ago

LicenseGPL-3.0

Release2024

Genre: Arcade

Theme: —

Active

Advanced Strategic Command

Clone of Battle Isle series

Advanced Strategic Command is a turn-based strategy game playable solo, hot-seat, by email, or online via Project Battle Planets.

Platforms:WindowsLinux

Stars44

Updated1 month ago

LicenseGPL-2.0

Release2019

Genre: Turn-Based Strategy

Theme: —

Halted

DreamZZT

Clone of ZZT

Platforms:WindowsLinuxOSX

Stars44

Updated15 years ago

LicenseGPL-2.0

Release2011

Genre: Action

Theme: —

Halted

Frets on Fire

Clone of Guitar Hero

Frets on Fire is a keyboard-based rhythm game with a song editor and an importer for note charts from several Guitar Hero discs.

Platforms:WindowsLinuxOSX

Stars44

Updated3 years ago

LicenseUnknown

Release2014

Genre: Rhythm

Theme: —

Halted

No preview

Lemmix

Clone of Lemmings

Lemmix is a near-exact Delphi Windows clone of DOS Lemmings that embeds six original games, plus replay and fan-made levels.

Platforms:Windows

Stars44

Updated5 years ago

LicenseUnknown

Release2020

Genre: Puzzle

Theme: —

Sporadic

No preview

Magma

Clone of Minecraft

Magma is a hybrid Minecraft server built on NeoForge and Spigot, letting one server run both CraftBukkit/Spigot plugins and NeoForge mods.

Platforms:None

Stars44

Updated3 months ago

LicenseUnknown

Release2024

Genre: Action

Theme: Fantasy

Halted

RAD

Clone of Radix: Beyond the Void

RAD is a from-scratch engine recreation of the 1995 DOS shooter Radix: Beyond the Void with OpenGL rendering.

Platforms:Windows

Stars44

Updated1 year ago

LicenseGPL-2.0

Release2020

Genre: FPS

Theme: Sci-Fi

Halted

No preview

Reconstruction of Super ZZT

Clone of Super ZZT

A byte-accurate reverse-engineered reconstruction of Super ZZT 2.0's source code, released under the MIT license.

Platforms:DOS

Stars44

Updated1 year ago

LicenseUnknown

Release2020

Genre: Action

Theme: —

Sporadic

No preview

Shrek 2 Remake

Clone of Shrek 2

A fan-made Unreal Engine 5 remake of Shrek 2, using textures exported from the original game, with several levels already playable.

Platforms:None

Stars44

Updated3 months ago

LicenseUnlicense

Release2023

Genre: Action

Theme: Fantasy

Halted

No preview

Space Invaders

Clone of Space Invaders

A browser-based Space Invaders re-imagining in BabylonJS, playable in 2D, 3D, or a CRT-emulation mode with scanlines.

Platforms:Web

Stars44

Updated2 years ago

LicenseUnknown

Release2022

Genre: Arcade

Theme: —

Halted

Super-Mario-64-DS-Remastered

Clone of Super Mario 64

A work-in-progress mod that swaps the Super Mario 64 PC port's models for higher-detail Nintendo DS remake models.

Platforms:Windows

Stars44

Updated3 years ago

LicenseUnknown

Release2022

Genre: Platform

Theme: —

Halted

Veraball

Clone of Super Monkey Ball

A Godot Engine 'roll the ball' game inspired by Super Monkey Ball, collecting coins to reach the goal.

Platforms:WindowsLinuxOSX

Stars44

Updated1 year ago

LicenseMIT

Release2015

Genre: Arcade

Theme: —

Halted

No preview

Batman Returns

Clone of Batman Returns

This is the released source code for the Sega CD Batman Returns, a 3D driving game, labeled assumed-complete rather than build-tested.

Platforms:Sega CD

Stars43

Updated8 years ago

LicenseUnknown

Release2018

Genre: Platform

Theme: —

Active

Commander Genius

Clone of Commander Keen Series

Commander Genius is a GPL engine that runs Commander Keen and Cosmo's Cosmic Adventure natively without DOS emulation, on five platforms.

Platforms:WindowsLinuxOSX

Stars43

Updated1 month ago

Licenseagpl-1.0

Release2018

Genre: Platform

Theme: —

Halted

FreedroidRPG

Clone of Paradroid

FreedroidRPG is an isometric 3D RPG set on future Earth, blending real-time action with dialogue-driven role-playing over 12 hours.

Platforms:WindowsLinux

Stars43

Updated1 year ago

Licensebitstream-vera

Release2015

Genre: Shmup

Theme: Fantasy

Halted

OpenGTA

Clone of Grand Theft Auto

An unplayable OpenGL engine project that renders the original GTA's cities from its data files, with a viewer and developer tools.

Platforms:WindowsLinux

Stars43

Updated5 years ago

LicenseUnknown

Release2015

Genre: Action

Theme: Crime

Halted

No preview

Reevengi

Clone of Resident Evil

Reevengi is a background image and 3D model viewer for the original PS1/PC Resident Evil 1-3 games, not a reimplementation.

Platforms:WindowsLinux

Stars43

Updated3 years ago

LicenseGPL-2.0

Release2019

Genre: Action

Theme: Horror

Halted

Wizznic!

Clone of Puzznic

A difficult brick-matching puzzle game with a built-in level editor, inspired by Taito's 1989 arcade game Puzznic.

Platforms:WindowsLinux

Stars43

Updated5 years ago

LicenseUnknown

Release2011

Genre: Puzzle

Theme: —

Active

Apple II Elite

Clone of Elite

This is the annotated original 6502 assembly source for the Apple II version of Elite, assembling into five byte-accurate variants.

Platforms:Apple II

Stars42

Updated13 days ago

LicenseUnknown

Release2024

Genre: Action

Theme: Sci-Fi

Halted

No preview

Balloon Fight (USA) NES Disassembly

Clone of Balloon Fight

This is a full disassembly of the USA NES release of Balloon Fight, reassembled with bass into working iNES and PRG ROM images.

Platforms:NES

Stars42

Updated8 years ago

LicenseUnknown

Release2018

Genre: Action

Theme: —

Active

FreedroidClassic

Clone of Paradroid

FreedroidClassic is a GPL-licensed remake of Paradroid, with some improvements and extensions, for Windows and Linux.

Platforms:WindowsLinux

Stars42

Updated1 month ago

LicenseGPL-2.0

Release2012

Genre: Shmup

Theme: Fantasy

Active

GLKeeper (GrimLands Keeper)

Clone of Dungeon Keeper 2

GLKeeper (GrimLands Keeper) is an early-development, open-source reimplementation of Dungeon Keeper 2 for Windows, not yet playable.

Platforms:Windows

Stars42

Updated15 days ago

LicenseMIT

Release2020

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