A zombie survival where you have to keep a factory that makes weapons and ammo up and running.
This has been said before in this thread, but a realistic, modern RPG where you can do anything. People would react to your decisions accordingly, like if you start randomly shooting people, they will take out their cell phones to call the cops.
Need another time splitters yes?
Is real life not good enough for you?
A Dead Rising with a sandbox mode and L4D2's body destruction.
dead rising 2 doesnt have limits to where you can cut bits off