Here is an article on Buckets of blood. A game made with blender + Unity, and sold on steam commercially.
I got the game around x-mas time for $3 US. It really is a funny little game. Lots of humor and lots of action. They even support the Xbox 360 controller for windows!!
Unity is starting to look very sexy… I think i am going to do the platform tutorial after work today. Seeing this and “Bob, came in pieces” being very sucessful on steam, makes me want to quit my job and start my own independent studio.