Vivid3D is a C++ IDE/3D engine, with python scripting.
Perl bindings to the Modern OpenGL API
3D Game engine
TurboSphere is an easy to learn and powerful JS based game engine.
3D game engine for C and C++
Pear3DEngine is a modern and modular 3D development framework
Multi-Language Wrapper Collection for the Irrlicht Engine
A cross-platform OpenGL based lightweight scenegraph library