I have to agree with Bodhesatva here, what game deal with religion? The only games I have played are probably Civilization and in a week sense Populous. But I might not be the best person on this matter since I will obviously be biased towards civ on the matter.
Edit: I can't stress this point enough, if Sid Meiers makes a PS3 exclusive game that is not available on the PC, I am getting a PS3