Blockbench - A low poly 3D model editor
The open source mesh processing system
An interior design application to draw house plans & arrange furniture
a parametric 3D CAD modeler
Open Source Solid Modeling CAD
3D modeler, 3D game maker, 3D demo maker
X3D is the open-standard format for 3D graphics scenes on the Web.
Xj3D is an open-source Java codebase for the X3D Graphics standard.
3d Procedural Generator
3D slider puzzles for kids; helps teach solid geometry
Open-Source Shoemaking
The programmer's solid 3D CAD modeller
Java3d scenegraph editor
HARFANG 3D source code public repository
3D Multiplayer Hover Soccer
3D Graphics by a Lightweight Open-Source Software