Pipe software is small group of polish game-developing hobbyst. Currently, we're developing PipEngine 3D and 2D.
PipEngine 2D is a small 2D engine / framework. It based on allegro but I will change soft to openGL
PipEngine is very simple, extensible and easy-to-use 3d graphics engine. It's base of Pipe Software's games, but it's completly free for all purposes!