Monk/Nun Games?

So as the title infers im wondering if their is a game where you can play as a monk or a nun out there? Maybe set in the late medieval period or something? I think it would be really fun to play as a nun who's arrived at a convent or a monk at a monastery, where you arrive as an Aspirant or maybe even just begin as a Postulant or and then work your way up through study and work.