Orcs Must Die! will unleash the horde on October 5 and 12 on Xbox Live Arcade and PC, respectively. Robot Entertainment's third-person tower defense game charges the player with defending their castle from wave after wave of Orcish invaders, using diabolical and silly traps.

Robot Entertainment has been showing off the game since early this year, so there's plenty of gameplay footage to check out. Most recently, the developer made a clever interactive trailer that gives the viewer a choice on what traps to place.