Making a game based on Schizophrenia.

[Screamin Soul]

You should try out Hellblade.

Also, Alan Wake (I think, it's hard to tell with that one.)

[A_Clever_Monocle]

what about setsunas sacrifice I think it was

[DarknessFX]

I think the game Killer7 (Grasshopper/Capcom) has something to do with schizophrenia.