Any way would it be liegle to get a bunch of fans together and make a game for free?
So you're asking a question of legality (too bad the subject line comes nowhere near to indicating what your post is about). Moving this to Business/Law.
btw, your question is unclear. Of course it's legal to make a game with anyone you want and to charge whatever price (or lack of price) you wish. Why would you think there's any law against that?