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

PrBoom+

Clone of Doom

Platforms:WindowsLinuxOSX

Stars301

Updated3 years ago

LicenseGPL2*

Release2017

Genre: FPS

Theme: Sci-Fi

Sporadic

FreeCS

Clone of Counter-Strike

A reimplementation on the FTEQW engine and Nuclide SDK that lets players run the original Half-Life mod Counter-Strike 1.5.

Platforms:WindowsLinuxOSX

Stars300

Updated11 months ago

LicenseISC

Release2021

Genre: FPS

Theme: —

Active

No preview

Pikmin

Clone of Pikmin

A complete matching decompilation of Nintendo's 2001 GameCube game Pikmin; your own copy of the game is required.

Platforms:GameCube

Stars300

Updated19 days ago

LicenseCC0-1.0

Release2021

Genre: Puzzle

Theme: Fantasy

Active

OpenLieroX

Clone of Liero

A Worms-style real-time 2D action game based on Liero Xtreme, with multiplayer and builds for desktop and Android.

Platforms:WebWindowsLinux

Stars298

Updated15 days ago

LicenseUnknown

Release2011

Genre: Platform

Theme: —

Sporadic

GBADoom

Clone of Doom

A Game Boy Advance port of prBoom supporting Doom's IWADs, with variable framerate and no multiplayer or demo support.

Platforms:GBA

Stars297

Updated1 year ago

LicenseUnknown

Release2019

Genre: FPS

Theme: Sci-Fi

Active

Xonotic

Clone of Nexuiz

A free, open-source arena shooter forked from the original GPL Nexuiz after its name went commercial.

Platforms:WindowsLinuxOSX

Stars297

Updated20 days ago

Licensegpl-3.0

Release2014

Genre: FPS

Theme: —

Halted

No preview

CaesarIA

Clone of Caesar III

An open-source remake of Caesar III on its own SDL2-based engine, playable but still in an early, experimental stage.

Platforms:WindowsLinuxOSX

Stars296

Updated9 years ago

LicenseUnknown

Release2014

Genre: Simulation

Theme: Management

Halted

The Bitwise Challenge: 2048

Clone of 2048

A terminal-based implementation of 2048 that runs directly in a Linux console.

Platforms:Linux

Stars296

Updated1 year ago

LicenseUnknown

Release2025

Genre: Puzzle

Theme: —

Active

Commander Wars

Clone of Advance Wars

A from-scratch Advance Wars clone built in C++ with the oxygine engine and Qt, supporting community mods.

Platforms:Linux

Stars295

Updated12 days ago

LicenseLGPL-3.0

Release2019

Genre: Turn-Based Strategy

Theme: —

Sporadic

No preview

pacman.zig

Clone of Pac-Man

A Zig version of the pacman.c Pac-Man clone, running natively and in the browser via WebGL2.

Platforms:WebWindowsLinux

Stars295

Updated4 months ago

LicenseMIT

Release2020

Genre: Arcade

Theme: —

Active

No preview

Animal Forest

Clone of Animal Crossing

A work-in-progress decompilation of the Nintendo 64 game Animal Forest, rebuilding an identical ROM rather than a port.

Platforms:N64

Stars294

Updated1 month ago

LicenseCC0-1.0

Release2023

Genre: Simulation

Theme: —

Archived

MafiaUnity

Clone of Mafia

An open-source, fan-made recreation of Mafia: The City of Lost Heaven's engine in Unity, aimed at easing modding.

Platforms:Windows

Stars294

Updated6 years ago

LicenseApache-2.0

Release2018

Genre: Action

Theme: Crime

Active

No preview

Odamex

Clone of Doom

A client/server Doom source port for Internet multiplayer with up to 255 players and many competitive game modes.

Platforms:WindowsLinuxOSX

Stars294

Updated12 days ago

LicenseGPL-2.0

Release2015

Genre: FPS

Theme: Sci-Fi

Halted

Harvest Moon 2.0

Clone of Story of Seasons series

A farming-sim clone built in Godot with crops, town trading, and a day cycle, though some interior areas remain inaccessible.

Platforms:WindowsLinuxOSX

Stars293

Updated6 years ago

LicenseMIT

Release2019

Genre: Simulation

Theme: Anime

Halted

No preview

War Worlds

Clone of War Worlds

The open-source release of War Worlds, a multiplayer space strategy game whose live service shut down in 2014.

Platforms:Android

Stars292

Updated2 years ago

LicenseMIT

Release2013

Genre: Simulation

Theme: Sci-Fi

Halted

vqisosmall

Clone of Voxel Quest

The original, rough first-engine release of Voxel Quest's isometric voxel renderer, shared by its creator.

Platforms:Windows

Stars292

Updated10 years ago

LicenseMIT

Release2016

Genre: —

Theme: —

Halted

No preview

Abyss Engine

Clone of Diablo II

A clean-room reimplementation in C of the Diablo II engine, currently unplayable with development halted.

Platforms:WindowsLinuxOSX

Stars291

Updated2 years ago

LicenseMIT

Release2024

Genre: RPG

Theme: Fantasy

Active

Space Station 3D

Clone of Space Station 13

An open-source, pre-alpha 3D revival of Space Station 13, built in Unity and expanding *beep's original SS3D demo.

Platforms:Windows

Stars291

Updated1 month ago

LicenseUnknown

Release2019

Genre: RPG

Theme: Sci-Fi

Active

AstroMenace

Clone of AstroMenace

An open-source 3D space shoot-'em-up with 15 levels, boss fights, and a weapon-upgrade shop, under active development.

Platforms:WindowsLinuxOSX

Stars289

Updated1 month ago

LicenseUnknown

Release2018

Genre: Shmup

Theme: —

Halted

AdaDoom3

Clone of Doom 3

An attempt to re-engineer id Tech 4, the Doom 3 engine, in the Ada language; mostly incomplete with development halted.

Platforms:None

Stars288

Updated3 years ago

LicenseUnknown

Release2013

Genre: FPS

Theme: Sci-Fi

Halted

Tetris (in C and NCURSES)

Clone of Tetris

A feature-complete terminal Tetris clone in C using NCURSES, with a hidden 'boss mode' to disguise the game.

Platforms:Linux

Stars287

Updated7 years ago

LicenseBSD-3-Clause

Release2015

Genre: Puzzle

Theme: Abstract

Sporadic

No preview

LBA2 Remake

Clone of Little Big Adventure 2

A from-scratch, browser-based reimplementation of the Little Big Adventure 1 and 2 engines in TypeScript and Three.js.

Platforms:Web

Stars286

Updated5 months ago

LicenseMIT

Release2018

Genre: Action

Theme: Fantasy

Active

OpenBiohazard2

Clone of Resident Evil 2

An in-progress Resident Evil 2 engine reimplementation in Go and OpenGL that runs on the original game's data files.

Platforms:None

Stars286

Updated1 month ago

LicenseMIT

Release2020

Genre: survival horror

Theme: Horror

Halted

vitetris

Clone of Tetris

A terminal-based Tetris clone with lock delay, customizable controls, and network multiplayer.

Platforms:WindowsLinuxDOS

Stars283

Updated1 year ago

LicenseBSD-2-Clause

Release2018

Genre: Puzzle

Theme: Abstract

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

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