The flexible game engine
SDL based generic 2D game engine
LDraw™ editor for LEGO® style digital building instructions.
A cross-platform, open-source, pure C game engine for mobile game
OpenGL port of the classic 6dof 3D shooter Descent
Multi-threaded 2D Renderer licensed under the Mozilla Public License
First experiment with OpenGL - a simple car racing game
A Simple Game Engine
A complete 2D Game Engine with built in drag and drop editor