OpenSCAD - OpenSCAD is a software for creating solid 3D CAD objects.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
OpenJSCAD.org - OpenSCAD + JavaScript = OpenJSCAD, edit locally or remote online, preview in browser direct via...
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
ImplicitCAD - ImplicitCAD is a programmatic CAD program, implemented in Haskell.
ZBrush - ZBrush is a digital sculpting and painting software solution.