Free & Open Source Platformer Games
418 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
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Clone of Abuse
A fork of the Abuse SDL2 port adding OpenGL rendering, high-res images, cheat console, and Xbox 360 controller support for Windows.
Halted
Halted
Clone of Cosmo's Cosmic Adventure
A reconstruction of Cosmo's Cosmic Adventure v1.20 source code, measured at 96.30% byte-for-byte accuracy against the original DOS binary.
Halted
Archived
Active
Active
Archived
Halted
Active
Clone of Sonic Adventure
A toolkit for extracting and modifying data from the Sonic Adventure series of games.
Platforms:Windows
Stars129
Updated1 month ago
LicenseUnknown
Release2013
Genre: Action
Theme: —
Halted
Clone of Super Mario 64
A no-longer-maintained open-source Super Mario 64 level editor supporting both vanilla and extended ROMs across all major regions.
Active
Halted
Clone of Even the Ocean
Even the Ocean is Analgesic Productions' open-source narrative platformer about balancing Light and Dark energy to save Whiteforge City.
Sporadic
Clone of Flappy Bird
Flappy Bird for Gymnasium is a Python package wrapping Flappy Bird as a reinforcement-learning environment for Gymnasium.
Halted
Clone of Nebulus
An HTML5 homage to Nebulus's rotating-tower platforming, MIT-licensed but development halted at a semi-complete stage.
Active
Clone of Knytt Stories
An open-source Godot/C# remake of the platformer Knytt Stories, with 1,200+ downloadable community levels.
Active
Clone of Meikyuujou Hydra
This version of Hydra Castle Labyrinth adds SDL support and targets Linux, handheld hardware, and a browser build via Emscripten.
Platforms:WebLinuxAmiga
Stars96
Updated1 month ago
LicenseGPL-2.0
Release2017
Genre: Action
Theme: Fantasy
Halted
Active
Halted
Clone of MegaMan
A browser-playable JavaScript clone of NES Mega Man, with 14 enemy types and three largely complete levels, still in progress.
Active
Active
Clone of Lionheart
Lionheart Remake is a cross-platform remake of the 1993 Amiga game Lionheart, for Windows, Linux, macOS, and Android, still in development.
Active
Clone of Super Mario
Mario Objects is a Mario-inspired platformer and level editor, rewritten in 2026 as a macOS Swift app with 9 levels.
Halted
Clone of Tomb Raider
A from-scratch rewrite of the classic Tomb Raider engine that plays TR1–TR3 levels and custom maps using your own game files.
Active
Clone of Duke Nukem
Dave Gnukem is a retro 2D platform shooter inspired by, but not a clone of, Duke Nukem 1, packaged in most major Linux distros.
Active
Active
Halted
Halted
Sporadic
Active
Active
Halted
Clone of Gunpoint
Clonepoint is a free, open-source clone of Gunpoint for Linux and Windows, with custom level support via the Tiled map editor.
Halted
Archived
Clone of Another World
An archived JavaScript/HTML5 reimplementation of Another World that interprets the original game's own bytecode, with a rewind feature.
Halted
Clone of Celeste Classic
A Game Boy Advance port of Celeste Classic 2 aiming for gameplay identical to the original, with only minor graphical changes.
Sporadic
Clone of Cosmo's Cosmic Adventure
Cosmo-Engine is a new game engine built with CMake and SDL2/SDL_mixer for playing Cosmo's Cosmic Adventure.