Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Autodesk DWG TrueView - Get a free DWG viewer to view, open, edit, and convert .dwg files, the native file format for AutoCAD files. DWG Trueview includes DWG TrueConvert.
ZBrush - ZBrush is a digital sculpting and painting software solution.
Autodesk Design Review - Design Review lets you view, mark up, print, and track changes to 2D and 3D files.
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
LiteCAD - Create, edit, view, and print 2D CAD drawings using the file formats: dxf, dwg, shp ;Download-Size...