It would be a pleasurable idea to create a sort of "Game of life" game, where you have to take choices which forms your personality and nature. 

I think that either a philosophical or a The Sims theme would be good.

EG: the Antigone's paradox: it's better to trust the written law or the heart's law? If I choose the first then I'll have to face more and more choices about laws, maybe inspired by historical events...or maybe some "events" inspired by the same paradox (like a teacher asking us to signal smokers but one of your friends is forced to smoke by bullies)