Blender

[Kelevra]

Compatible OS: Windows 32 bits, Windows 64 bits, Linux x86-32, Linux x86-64, Mac OS X, Solaris, and Irix
Short Description: Blender is the free open source 3D content creation suite, available for all major operating systems under the GNU General Public License.

I have been using this program for quite some time and to be honest in my opinion it's the best free 3D Animation and Game Animation out there. Below is some basic info (being lazy I just copied and pasted it:

Blender is avaliable cross platform, but utilizes OpenGL for drawing the entire interface. That means you best use a graphics card and drivers that conform to the OpenGL specifications.
Unfortunately there are a lot of cheap graphics cards on the market that only support a basic sub-set of the OpenGL specs. VIA and Intel cards are infamous for this.

World-wide many universities, schools and institutes are now offering Blender training and classes. This section is meant for people who are looking for qualified trainers, or for trainers who want to become certified.

Blender is a suite of tools enabling the creation of and replay of linear and real-time, interactive 3D content. It offers full functionality for modeling, rendering, animation, post-production and game creation and playback with the singular benefits of cross-platform operability and a download file size of less than 2.5MB.
Aimed at media professionals and individual creative users, Blender can be used to create commercials and other broadcast quality linear content, while the incorporation of a real-time 3D engine allows for the creation of 3D interactive content for stand-alone playback or integration in a web browser.
Originally developed by the company 'Not a Number' (NaN), Blender now is continued as 'Free Software', with the sources available under GNU GPL.

Complete Features List here>> http://www.blender.org/features-gallery/features/

Official Site: http://blender.org
Official Forum: http://www.blender.org/forum/
Official Download: http://www.blender.org/download/get-blender/
Official Gallery: http://www.blender.org/features-gallery ... t-gallery/
Official Movies: http://www.blender.org/features-gallery/movies/
Official Resources: http://www.blender.org/download/resources/

Big Buck Bunny Official Site: http://www.bigbuckbunny.org/index.php (movie)
Elephant Dreams Official Site: http://www.elephantsdream.org/ (movie)
Yo Frankie Official Site: http://www.yofrankie.org/ (Game; Open Source Available)
Python: http://www.python.org/ (Need for some function to work in Blender; Blender was also coded in Python)