Functy is a 3D graph drawing package that generates immediate results.
A public domain cross platform 3D game
3D .NET engine for Windows, Linux, Mac
kicad 3D is aimed to add 3D realistic feature on kicad pcb CAD
simple 3d scene viewer for windows/linux/android
Gimpel3D - 2D/3D Stereo Conversion Editor
A small library to create SDL 2 - OpenGL applications.
An object oriented 3D graphics API on top of OpenGL
Minimalist 3D Scenegraph Management Framework
loadmd2_chung is a dll to load 3D md2 models into openGL
Volume Rendering library in Java