I will give a list and a bit of a description on which free applications I find most useful, and give a little information on each.
This is a guide to the many features of the 3d model creator called blender.
How to create an Alien figure with “Blender” and “Zbrush”.
If you are interested in learning how to make a 3D animation, a 3D Game, get gaming tips, among other various things.