SketchUp - 3D for Everyone
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Arena - Chess GUI Arena
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
PTC Creo Sketch - Creo Sketch is an easy to use 2D CAD application for capturing and creating new 2D freehand concepts which is available on PCs, Macs, and iPads.
ZBrush - ZBrush is a digital sculpting and painting software solution.