Licurg: A realistic terrorist simulator. One where you can choose to found a terrorist group, and then commit attacks and stuff, with the final objective up to you(world domination, anarchy, theocracy, depending on what ideology you choose).
SimonG: Porn: The Game For XBox Kinect
To both of you:
Please go to Kickstarter and start fundraising.
No, I mean it.
DO IT NOW!!!
[edit]
To remain on topic in this thread:
A Medieval Torture Simulator with RPG elements like the SIMs where you can buy your furniture only with your own medieval Dungeon, with the options of designing models of your boss or mother in law so that you can let off some steam.
All embeded in a beautiful campaign, where you are the evil Villain abducting Princesses, defiling them and sending them back in pieces while stupid heroes die on your porch thank to your advanced traps and many loyal minions