3D .NET engine for Windows, Linux, Mac
A public domain cross platform 3D game
3D render software animation
Design and Display Happy Cube solutions
A C++ 3D game engine.
XNA based game engine completely written in c#
shader editor
A cross-platform game framework based on OpenGL and GObject.
3D world editor for game development
Pear3DEngine is a modern and modular 3D development framework