[Serious]

I'll save you some time Mr. Richards...you might as well ban the following games:

Brutal Legend - the whole game is about rock and roll
Dragon Age Origins - magic, witchcraft
Dead Space - game takes place in space, killing aliens
Red Faction Guerrilla - whole game takes place on mars
Mass Effect 1/2 - game takes place on different planets
Fable 2 - magic, witchcraft
Lost Planet 1/2 - takes place on another planet with monsters

I could add a bunch more but I don't think I'm going to be taken seriously anyway so I'll stop there...