The Ghost of RubangB on 31 January 2009
I'd make a heist-planning game.
You have to form a team, case a joint, take photos, go undercover and steal blueprints, plan a route with your friends, get a getaway car, etc., and then rock the heist. It could turn into a hostage situation on the news or a shootout or a chase or all 3. Tons of options.
It'd be like an online (or local) co-op SimHeist game.
