what kind of games can i incorporate in a forum???

I was thinking of having some type of game thats part of the forum...but was wondering were could i go for ideas...i seen forums were each member earns cash for doing certain things and i would like to do something like that  but have it geared toward the music biz...sort of like music biz tycoon type of game...were players could manage artists..sign artist..get royalties set up tours..etc.. anyone have any ideas on this or where i could look for more info on it...thanks..