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 Sonic 3
A non-profit fan remaster of Sonic 3 & Knuckles built on a custom engine, with a remastered soundtrack.
Halted
Original game image
Original game imageClone of Super Mario World
A reverse-engineered reimplementation of Super Mario World, verified frame-by-frame against a reference emulator for accuracy.
Archived
Original game image
Original game imageClone of SpongeBob SquarePants: SuperSponge
The preserved full source-code history of the 2001 PS1 platformer SpongeBob SquarePants: SuperSponge, by Climax Studios.
Active
Clone of Jazz Jackrabbit 2
An open-source reimplementation of Jazz Jackrabbit 2 that runs using your original game files.
Stars575
Updated2 months ago
LicenseGPL-3.0
Release2017
Genre: Platform
Theme: —
Active
Clone of Sonic the Hedgehog
A 3D Sonic the Hedgehog fangame running on a modified Doom Legacy engine, made independently and unaffiliated with Sega.
Sporadic
Clone of Cave Story
An upgraded NXEngine fork for Cave Story with SDL2, widescreen up to Full HD, localization and initial mod support.
Halted
Clone of Celeste Classic
A PICO-8 platformer about hiking around a mountain, playable on Linux, macOS, Windows, and in the browser.
Active
Clone of Super Mario
An open-source SDL multiplayer deathmatch game using Mario-style characters, with online play, a level editor, and 1,000+ maps.
Halted
Halted
Active
Clone of Banjo-Kazooie
A Banjo-Kazooie PC port with multiplayer, romhack and language-pack support and a built-in randomizer.
Stars477
Updated1 month ago
LicenseCC0-1.0
Release2024
Genre: Adventure
Theme: —
Active
Original game image
Original game imageClone of Donkey Kong 64
Donkey Kong 64: Recompiled uses N64: Recompiled to statically recompile Donkey Kong 64 into a native port with added features, with RT64 as…
Stars477
Updated1 month ago
LicenseGPL-3.0
Release2026
Genre: Platform
Theme: —
Active
Clone of Sonic the Hedgehog
An open-source 2D engine with its own Sonic-style platformer, Surge the Rabbit, plus a scripting language for making new games.
Platforms:WindowsLinuxAndroid
Stars476
Updated3 months ago
LicenseGPL-3.0
Release2018
Genre: Platform
Theme: —
Archived
Original game image
Original game imageClone of Super Mario 64
A PSX/PC port of the Super Mario 64 decompilation with real DualShock rumble support, though unfinished and archived.
Active
Clone of Super Monkey Ball
A ball-rolling game where you tilt the floor to steer a ball through timed obstacle courses and collect coins.
Active
Original game image
Original game imageClone of Sonic the Hedgehog
A full disassembly of the original 1991 Sonic the Hedgehog Genesis code, shared for educational, non-commercial use only.
Active
Clone of Oddworld: Abe's Oddysee
R.E.L.I.V.E. is an open-source, bug-fixing engine replacement for Oddworld: Abe's Oddysee and Abe's Exoddus.
Platforms:WindowsLinuxOSX
Stars435
Updated2 months ago
LicenseUnknown
Release2018
Genre: Platform
Theme: —
Active
Original game image
Original game imageClone of Super Mario Odyssey
A work-in-progress decompilation of Super Mario Odyssey 1.0.0 that recreates a source code base from scratch.
Stars433
Updated1 month ago
LicenseUnknown
Release2021
Genre: Platform
Theme: —
Active
Original game image
Original game imageClone of Super Mario
TheXTech is a faithful C++ rewrite of the SMBX 1.3 Mario-style level engine, running cross-platform with an added editor.
Active
Original game image
Original game imageClone of Jazz Jackrabbit
An open-source engine for the classic Jazz Jackrabbit games, running on PC, homebrew consoles and in the browser.
Platforms:WebWindowsLinux
Stars408
Updated2 months ago
LicenseGPL-2.0
Release2014
Genre: Platform
Theme: —
Sporadic
Halted
Clone of Celeste Classic
A Game Boy Advance port of Celeste Classic, described as almost a direct conversion of the original with only minor graphical changes.
Archived
Original game image
Original game imageClone of Ninja Hattori-kun
An archived, undocumented repository of NES source code for Ninja Hattori-kun.
Halted
Clone of Duke Nukem II
Duke 2 Reconstructed is a from-scratch reconstruction of Duke Nukem II's source code from disassembly, producing a byte-identical binary.
Active
Original game image
Original game imageClone of Castlevania: Symphony of the Night
A static recompilation of the Xbox Live Arcade Castlevania: Symphony of the Night for Windows and Linux.
Active
Original game image
Original game imageClone of Tomb Raider
An open-source custom level engine for classic-style Tomb Raider levels, needing no original game assets.
Active
Clone of Super Mario Sunshine
A work-in-progress Super Mario Sunshine decompilation with no game assets included; it needs your own disc image.
Stars323
Updated1 month ago
LicenseCC0-1.0
Release2021
Genre: Platform
Theme: —
Active
Clone of Commander Keen Series
A pixel-perfect, bug-for-bug reimplementation of Commander Keen episodes 4-6 that reads the original game's data files.
ActiveOriginal game image
Original game imageClone of Super Mario 64
A Nintendo 3DS port of Super Mario 64 with stereo 3D, touch-screen camera controls and a mini-menu.
Stars317
Updated3 months ago
LicenseUnknown
Release2020
Genre: Platform
Theme: —
Active
Clone of Tomb Raider
An actively developed open-source engine remake of Tomb Raider 1, requiring original game data, for Windows and Linux.
Active
Active
Active
Original game image
Original game imageClone of The Simpsons Game
A static recompilation that turns The Simpsons Game (Xbox 360) into a native PC port for Linux, Steam Deck and Windows.
Stars293
Updated1 month ago
LicenseGPL-3.0
Release2026
Genre: Action
Theme: —
Sporadic
Active
Original game image
Original game imageClone of Adventure Island
Compilable, editable disassemblies of 26 NES games that rebuild ROMs identical to the originals.
Platforms:NES
Stars282
Updated3 months ago
LicenseUnknown
Release2021
Genre: Action
Theme: —
ActiveOriginal game image
Original game imageClone of Super Mario
An open-source engine and dev kit for building Mario-style platform games, with SMBX compatibility.
Platforms:WindowsLinuxOSX
Stars280
Updated2 months ago
LicenseGPL-3.0
Release2014
Genre: Platform
Theme: —
Active
ArchivedOriginal game image
Original game imageClone of Super Mario World
An abandoned Super Mario World remake for Windows and Linux, left open source by its author for others to fork and continue.
Active
Original game image
Original game imageClone of Sonic 3
A byte-perfect disassembly of Sonic 3 and Sonic & Knuckles for the Sega Genesis, built for modding.