I ask, because I wish to plays teh coop. For those of you who have no idea what I am talking about, Orcs Must Die 2 is a recently released (Recently, as in, it was released 2 days ago) sequel to the popular Orcs Must Die. Orcs Must Die 2 is much like its predecessor. The game is an action/trap defense hybrid. Enemies spawn from the portal(s) at one end of the level, and try to make their way to the exit(s) at the other end. If a certain number of enemies make it to the exit, you fail. To stop them, you must place various traps along the way to the exit. Such traps include things as simple as a tar pit or a arrow wall, to things such as auto-ballista or paladin guardians. At the same time, you can engage the enemies yourself, with a variety of weapons, such as a blunderbuss that can fire proximity grenades, a crossbow, vampiric gauntlets,acid bombs, various magic amulets, etc. There is also an upgrade system for both traps and weapons. The currency for this is in skulls, which you get based on your performance on each level, or rarely find as a dropped item from enemies. Now, if you have played Orcs Must Die 1, and know all of this shit already, here is what changed in the sequel. 1.) The introduction of Co-op. About bloody time. The two characters each have their own set of weapons and traps to get, and are intended for different fighting styles. 2.) A refund system for the upgrades. Say you had a tough time choosing between upgrades, picked one, and decided while playing that you REALLY should have gotten the other one. Rather than bemoan your poor choice, you can simply go into the store, and refund all of your purchases. Just be sure to get all of your old upgrades back, as it does refund ALL of your purchases. 3.)That level by level system of upgrades (The Weavers) is gone, and the upgrades for the traps, rather than just one per trap, is now three level upgrades for traps, as well as unique upgrades for them. You can only have one unique upgrade active at a time per trap. Weapons also get the same system. 4.)Moar enemy variety. Moar is better. If you don't have this game, you should get it. It's fifteen bucks on Steam. Also, if you own teh Orcs Must Die 1, you get access to 10 of its levels in Orcs Must Die 2.