3D game engine for C and C++
Scriptable frontend for media applications.
Retro pong clone implemented using sfml
Game development toolkit
A lightweight HTML5 Game Engine
Pear3DEngine is a modern and modular 3D development framework
Phobos editor is a generic resource editing system.
Open Source Virtual World and MMOG Development Platform
DiaT is a Textadventure
Simple Point & Click Game