Blender - Blender is the open source, cross platform suite of tools for 3D creation.
ZBrush - ZBrush is a digital sculpting and painting software solution.
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
DAZ 3D - Daz 3D, 3D Models, 3D Animation, 3D Software
Unity - The multiplatform game creation tools for everyone.
Sculptris - Sculptris: Enter a world of digital art without barriers.