Free & Open Source Platformer Games
565 free, open-source platformer games — real clones and remakes you can download, inspect the source of, and modify. Not just free to play: the code itself is open.
Active
Clone of Crystal Caves
An unofficial, actively developed open-source engine reimplementation of the Crystal Caves platformer trilogy.
Active
Clone of Flappy Bird
Ebitengine is an open-source, cross-platform 2D game engine for Go, with simple APIs for graphics, input, and audio across many platforms.
Halted
Original game image
Original game imageClone of Super Mario 64
A full decompilation of Super Mario 64 for the JP, US, EU, Shindou and iQue releases; a prior copy of the game is needed.
Stars8,814
Updated2 years ago
LicenseCC0-1.0
Release2019
Genre: Platform
Theme: —
Active
Halted
Original game image
Original game imageClone of Prince of Persia
The original 6502 assembly source code for Prince of Persia, written by Jordan Mechner and released by Broderbund in 1989.
Active
Clone of Tomb Raider
An open-source engine for the classic Tomb Raider games, with a browser demo and standalone builds.
Active
Original game image
Original game imageClone of Sonic Unleashed
An unofficial static-recompilation PC port of Xbox 360's Sonic Unleashed, requiring your own legally owned copy of the game.
Active
Clone of Jak and Daxter: The Precursor Legacy
A native PC port of the Jak and Daxter trilogy, decompiled from the original GOAL code; requires your own PS2 discs.
Active
Original game image
Original game imageClone of Super Mario Bros.
An open-source, Godot-built recreation of the classic Super Mario Bros. games with a full level editor and custom characters.
Platforms:WindowsLinux
Stars3,142
Updated2 months ago
LicenseGPL-3.0
Release2025
Genre: Action
Theme: —
Active
Original game image
Original game imageClone of Banjo-Kazooie
A native N64: Recompiled-based port of Banjo-Kazooie for Windows, Linux, and macOS, requiring your own North American ROM to load.
Platforms:WindowsLinuxOSX
Stars1,970
Updated2 months ago
LicenseGPL-3.0
Release2025
Genre: Adventure
Theme: —
Halted
Original game image
Original game imageClone of Commander Keen Series
The official GPLv2+-licensed source release of Commander Keen in Keen Dreams, though game data must be acquired separately.
Active
Clone of Rogue Legacy
The official Rogue Legacy source code release (FNA build), requiring your own copy's assets.
HaltedOriginal game image
Original game imageClone of Super Mario 64
An enhanced PC port of Super Mario 64 adding mouse-look camera, custom texture packs, and a cheats menu.
Archived
Clone of Flappy Bird
A Flappy Bird clone built with the MelonJS engine, playable in the browser, with a customization guide included for reskinning it.
Halted
Original game image
Original game imageClone of Canabalt
The official iOS source release of Canabalt from Semi Secret Software, with only the flixel-ios engine code under MIT license.
Sporadic
Original game image
Original game imageClone of Soldat
The open-sourced 1.8 codebase of Soldat, the fast-paced 2D side-view multiplayer shooter, buildable on Windows, Linux and macOS.
Platforms:WindowsLinuxOSX
Stars1,465
Updated10 months ago
LicenseMIT
Release2018
Genre: Platform
Theme: Modern Military
Archived
Clone of Tomb Raider
An inactive from-scratch Tomb Raider 1–5 engine remake with Lua scripting and support for custom TRLE levels.
Active
Clone of Cave Story
A from-scratch reimplementation of the Cave Story engine with quality-of-life improvements, requiring the original game's data files.
Sporadic
Clone of Prince of Persia
An open-source, feature-expanded port of DOS Prince of Persia, built from a full disassembly of the original executable.
Platforms:WindowsLinuxOSX
Stars1,283
Updated10 months ago
LicenseGPL-3.0
Release2015
Genre: Platform
Theme: —
Active
Original game image
Original game imageClone of Sonic the Hedgehog
A Retro Engine v4 decompilation of Sonic 1 & 2 (2013), adding online multiplayer and mod support.
Platforms:WindowsLinuxAndroid
Stars1,127
Updated2 months ago
LicenseUnknown
Release2020
Genre: Platform
Theme: —
Active
Original game image
Original game imageClone of Castlevania: Symphony of the Night
This work-in-progress decompilation aims to rebuild Symphony of the Night's source across PS1, PSP, and Saturn versions, byte-for-byte.
Halted
Clone of Duke Nukem II
A reverse-engineered, feature-complete reimplementation of Duke Nukem II in modern C++, with widescreen and controller support.
Sporadic
Clone of Prince of Persia
A browser-based HTML5/JavaScript remake of the MS-DOS Prince of Persia, playable free at princejs.com.
Active
Clone of Tomb Raider III
An open-source, single-engine reimplementation of Tomb Raider I-III with restored content, photo mode, and more.
Platforms:WindowsLinuxOSX
Stars987
Updated1 month ago
LicenseGPL-3.0
Release2021
Genre: Action
Theme: —
Halted
Clone of Another World
A readability-focused reimplementation of the Another World engine; needs the original PC DOS game data.
ActiveOriginal game image
Original game imageClone of Castlevania: Symphony of the Night
SymphonyRecomp is an open-beta PlayStation recompilation of Castlevania: Symphony of the Night for modern PCs.
Active
Original game image
Original game imageClone of Sonic Mania
A decompilation of Sonic Mania (Plus) on RSDKv5 with a built-in mod loader; needs assets from an official release.
Stars806
Updated1 month ago
LicenseUnknown
Release2020
Genre: Platform
Theme: —
Halted
Clone of Super Mario
A C++/SDL2 clone of Super Mario Bros., built by developer Łukasz Jakowski as his first C++ project.
Active
Clone of Super Mario 64
It does not include any copyrighted assets, so you must provide a supported US or JP ROM.
Stars800
Updated2 months ago
LicenseMIT
Release2023
Genre: Platform
Theme: —
ActiveOriginal game image
Original game imageClone of Sonic Mania
A decompilation of Sonic Mania requiring official game assets, adding a built-in mod loader and support for building past releases.
Platforms:WindowsXbox OnePS4
Stars792
Updated1 month ago
LicenseUnknown
Release2020
Genre: Platform
Theme: —
Halted
Clone of Super Mario
A C++ decompilation of the original Super Mario Bros. NES disassembly, requiring the original ROM's graphics data to run.
Halted
Clone of Mario World
Mari0 is a remake built on the LÖVE 11.4 framework, released under the MIT license.
Active
Active
Clone of Jazz Jackrabbit 2
A from-scratch C++ reimplementation of Jazz Jackrabbit 2, requiring the original game data and running on many platforms.
Active
Halted
Clone of Cave Story
A rewrite and port of the freeware game Cave Story for the Sega Mega Drive/Genesis.
Active
Clone of Sonic Advance
A work-in-progress matching decompilation of Sonic Advance and Sonic Advance 2, with SDL, PS2, and PSP ports.
Platforms:WindowsLinuxOSX
Stars664
Updated3 months ago
LicenseUnknown
Release2022
Genre: Platform
Theme: —
ActiveOriginal game image
Original game imageClone of Banjo-Kazooie
The code is split into modules that can be built individually or all together with make.
Stars649
Updated1 month ago
LicenseCC0-1.0
Release2021
Genre: Adventure
Theme: —
Active
Original game image
Original game imageClone of Sonic '06
An unofficial PC port of the Xbox 360 Sonic the Hedgehog (2006) made by static recompilation; still in development.
Stars645
Updated1 month ago
LicenseGPL-3.0
Release2025
Genre: Action
Theme: —