Voxel game engine in C++ with OpenGL
Cross-platform 2D and 3D game engine with modular architecture
Game engine for playing tomb raider 1 - 5 levels.
Mahasona engine is an open source game engine.
A generic 2D engine for any kind of game
2D - 3D game engine
BxEngine For Marmalade And QT
2D Game Engine, based on OpenGL and focused on Isometric Games
Cross-platform 2D game engine