ISSIGraph

Easy 3D wireframe modelling application using Bezier, NURBS and basic surfaces

A 3D home and interior design application

Freeware 3D animation software that keeps getting better

Animation and simulation software for movies and games

A free and easy to use alternative to those looking to do 3D modeling work

Free CAD software to enable users to create, edit, and view DWG files

Powerful and stable design software that supports collaboration