Build your own world with Groboto
Groboto, the best little 3D program that no one knows about, lets you grow machines like coral, animate organic forms, create a new world.
Not only does Groboto allow you to create marvelous 3D creations, animations and games, but it has fun audio feedback for everything you do, so it beeps and burbles at you as you work.
For more information about Groboto, click here