The first rule of Fight Club, is you don't... Wait, that was Project Mayhem? Oh, and this one is Project Anarchy. So many great movie jokes ruined because somebody gave this thing the wrong name. Alright, let's just be serious for a minute.
If you're a gamer, you've probably heard of a little company called Havok. You may have even heard of a few games using its Physics engine like Battlefield 3, BioShock (1 & 2), Assassin's Creed (all of 'em), Elder Scrolls V: Skyrim, and a few hundred more.