Head tracking app for games and flight simulation software
Open source clone of Theme Hospital
3D game engine/framework in C, with Luajit and Python bindings now
A nonsense activity generator
A pure Go game engine
cross-platform sound-playing package for C++ apps
ASCII SpaceInvaders, Pacman, Frogger
Enigma is a puzzle game
Orx: Data-Driven Game Engine
Sokoban with many families of puzzles provided.
3D Multiplayer Hover Soccer
3D slider puzzles for kids; helps teach solid geometry
Offline tarot reading app with custom card sets and Rider Waite
kid-friendly retro point & click 3D OpenGL "adventure" game
Klotsky class block slider puzzles.
3D OpenGL dungeon game using Ada: a tribute to Narbacular Drop
FLTrator is a retro style scrolling arcade game using FLTK.
Engo is an open-source 2D game engine written in Go
DeSmuME is a Nintendo DS emulator
Character animation system for games and simulations.
Tangram game
Open Game Bootstrap
Paintown is a 2d fighting game engine.
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3