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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Sporadic

Lode Runner 2020

Clone of Lode Runner

Lode Runner 2020 is a C++/OpenGL remake of Lode Runner and its sequel, including all 150 original Apple II levels.

Platforms:WebWindowsLinux

Stars30

Updated5 months ago

LicenseMIT

Release2020

Genre: Arcade

Theme: —

Sporadic

No preview

Mario-Bros.-Dis

Clone of Mario Bros.

Mario-Bros.-Dis is a byte-to-byte accurate disassembly of NES Mario Bros., covering NTSC, PAL, and GameCube variants.

Platforms:NES

Stars30

Updated3 months ago

LicenseUnknown

Release2018

Genre: Action

Theme: —

Active

O21

Clone of U95

An unfinished open-source remake of NIKITA's 1995 game U95, built by black-box reimplementation.

Platforms:Windows

Stars30

Updated18 days ago

LicenseMIT

Release2023

Genre: Arcade

Theme: Aquatic

Halted

No preview

Return of Dr. Destructo

Clone of Destructo

An open-source, cross-platform remake of the 1987 ZX Spectrum game Island of Dr. Destructo, using original CC-BY-SA art.

Platforms:WindowsLinuxOSX

Stars30

Updated5 years ago

LicenseUnknown

Release2015

Genre: Arcade

Theme: —

Halted

No preview

Still Yet Another Sokoban

Clone of Sokoban

A cross-platform SDL clone of the classic Sokoban puzzle game, first released in 2002 with public-domain levels and ongoing updates.

Platforms:WindowsLinuxOSX

Stars30

Updated2 years ago

LicenseUnknown

Release2016

Genre: Puzzle

Theme: —

Halted

The Bilestoad

Clone of The Bilestoad

This repository preserves The Bilestoad's original Apple II source code as unconverted floppy disk images, not a ready-to-run build.

Platforms:Apple II

Stars30

Updated7 years ago

LicenseUnknown

Release2019

Genre: Fighting

Theme: Sci-Fi

Halted

No preview

s3ddisasm

Clone of Sonic 3D Blast

A disassembly of Sonic 3D Blast for the Sega Genesis, shared for educational, non-commercial reference only.

Platforms:Genesis

Stars30

Updated13 years ago

LicenseUnknown

Release2013

Genre: Platform

Theme: —

Halted

zztgo

Clone of ZZT

A Go port of a reconstructed ZZT source code base, using a custom Pascal-to-Go converter and the tcell terminal library.

Platforms:None

Stars30

Updated6 years ago

LicenseMIT

Release2020

Genre: Action

Theme: —

Halted

No preview

Beasts and Bumpkins Fan Patch

Clone of Beasts and Bumpkins

A fan-made patch for Beasts and Bumpkins (1997) that removes the CD requirement, fixes lag on modern hardware, and adds higher resolution.

Platforms:Windows

Stars29

Updated3 years ago

LicenseGPL-3.0

Release2023

Genre: Real-Time Strategy

Theme: Comedy

Halted

Cubosphere

Clone of Kula World

Cubosphere is a freeware game similar to Kula World, offering over 450 levels across 34 designs and a built-in level editor.

Platforms:Linux

Stars29

Updated6 years ago

LicenseGPL-3.0

Release2018

Genre: Platform

Theme: —

Active

Deathlord Relorded

Clone of Deathlord

Deathlord Relorded modernizes the 1987 RPG Deathlord with better visuals and interface while running the original game code underneath.

Platforms:Windows

Stars29

Updated1 month ago

LicenseAGPL-3.0

Release2021

Genre: RPG

Theme: Fantasy

Sporadic

Doom 64 for Dreamcast

Clone of Doom 64

This is a from-scratch Dreamcast port of Doom 64, built on KallistiOS and requiring the original game's data to run.

Platforms:Dreamcast

Stars29

Updated4 months ago

LicenseUnknown

Release2024

Genre: FPS

Theme: Sci-Fi

Sporadic

Dungeon Craft

Clone of Forgotten Realms: Unlimited Adventures

Dungeon Craft is a C++ Windows app that extends FRUA's Gold Box engine and tools, raising many of its hard-coded limits.

Platforms:Windows

Stars29

Updated8 months ago

LicenseGPL-2.0

Release2020

Genre: RPG

Theme: —

Halted

FreeBlocks

Clone of Tetris Attack

FreeBlocks is a GPLv3 puzzle game similar to Tetris Attack, using separately licensed third-party graphics and music.

Platforms:Linux

Stars29

Updated7 years ago

LicenseGPL-3.0

Release2012

Genre: Puzzle

Theme: Abstract

Sporadic

No preview

Mario Party 7

Clone of Mario Party 7

Mario Party 7 is a work-in-progress decompilation of the GameCube original, currently supporting only the USA ROM revision.

Platforms:GameCube

Stars29

Updated3 months ago

LicenseCC0-1.0

Release2024

Genre: Party

Theme: —

Halted

No preview

Mega Man 4 (NES) Disassembly

Clone of Mega Man 4

A complete disassembly of the NTSC-U Mega Man 4 (NES) ROM that reassembles to a byte-for-byte clean ROM, though not all code is documented.

Platforms:NES

Stars29

Updated5 years ago

LicenseUnknown

Release2017

Genre: Platform

Theme: Sci-Fi

Sporadic

No preview

OpenOrion2

Clone of Master of Orion 2

An early open-source remake of Master of Orion II that can currently load and view original savegames.

Platforms:WindowsLinux

Stars29

Updated9 months ago

LicenseGPL-2.0

Release2021

Genre: Turn-Based Strategy

Theme: Sci-Fi

Halted

OpenSolomonsKey

Clone of Solomon's Key

A Linux and Windows port of the 1986 arcade puzzle game Solomon's Key, with its own format for making custom levels.

Platforms:WindowsLinux

Stars29

Updated6 years ago

LicenseUnlicense

Release2019

Genre: Puzzle

Theme: —

Sporadic

No preview

Project AG

Clone of AeroGauge

An early-stage N64 decompilation project reconstructing AeroGauge's source code, requiring a legitimate ROM to build.

Platforms:N64

Stars29

Updated8 months ago

LicenseUnknown

Release2022

Genre: Racing

Theme: Sci-Fi

Archived

REminiscence

Clone of Flashback

REminiscence is a re-implementation of Flashback's 1992 engine, supporting its DOS, Amiga, Macintosh, and PC98 releases.

Platforms:Windows

Stars29

Updated2 months ago

LicenseUnknown

Release2019

Genre: Adventure

Theme: —

Halted

SpaceInvaders

Clone of Space Invaders

An educational Haskell reimplementation of Space Invaders demonstrating Functional Reactive Programming with Yampa.

Platforms:None

Stars29

Updated2 years ago

LicenseBSD-3-Clause

Release2015

Genre: Arcade

Theme: —

Archived

Wiirdle

Clone of Wordle

Wiirdle is a Nintendo Wii port of the daily word-guessing game Wordle, built with the WiiLÖVE framework.

Platforms:Wii

Stars29

Updated2 years ago

LicenseGPL-3.0

Release2022

Genre: Puzzle

Theme: —

Archived

No preview

asteroids-7800

Clone of Asteroids

Platforms:Atari

Stars29

Updated11 years ago

LicenseUnknown

Release2015

Genre: Arcade

Theme: —

Halted

doom64DS

Clone of Doom 64

Platforms:DS

Stars29

Updated12 years ago

LicenseUnknown

Release2013

Genre: FPS

Theme: Sci-Fi

People are curious about clones of...

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

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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