Classic 2D side-scrolling platformer game
Godot 3.6 / Tiny Crate / Crate Chucking Puzzle Platformer Game / Open
Jazz² Resurrection: Open-source reimplementation of Jazz Jackrabbit 2
The source code to VVVVVV
Java/JavaFX/Kotlin Game Library (Engine)
3D platform action adventure with momentum-based flying
Willy the Worm is an 2d side scroller arcade stye game
2D Platform Game developed in Unity for Android, Windows, and Linux
3D C++ Game Engine - yet another open source game engine
Fun platformer game
Y.A.G.A.C is a free open-source platformer game
Flex roguelike
Platformer in which you need to get to the Princess
This game is Build From Scratch using C++ & SFML.
PlatforMax
tiny code, html webcam game or plug brain in each blob, java server
Modern AS3 Game Engine
A 2D Platformer Shooter game
2D Computer World Platformer
Sci-Fi Horror Xna Action Platformer
A Platformer game
First-person game engine
Game made for the Ludum Dare 27 game competition