@Mr.Tranquilizer - well, maybe my idea is not strictly a prisoner dilemma, but it base on it strongly. I imagine 2 possibilities: either go for profitable bonus, or unprofitable.
If both players go for unprofitable bonuses, then non of them gains anything special (like 2 prisoners that decided to keep quiet).
If one of them decides to go for profitable bonuses, then he'll most likely win (1 prisoner decides to talk)
If both decides to go for profitable bonus, then they're releasing AI who kills them both and they both lose (both prisoners decide to talk). You can imagine AI being a prison guard :)
I'd imagine map to looks more less like this:
@knyte - so here's my idea: in order to get to good bonus, you need to break AI penalty bonuses, giving him +100 income boost for each.
Edited 7/18/2015 12:28:45