Those who have the original Orcs Must Die! on Steam will receive a set of ten maps from the original game that have been unlocked in Orcs Must Die! 2 to include co-op mode as well as all-new traps and monsters, developer Robot Entertainment announced today.
The announcement is more than a little timely, because the original Orcs Must Die! just got discounted to 50% off during the Steam Summer Sale. It's well worth picking up too, as it's one of our favorite games from the past few years and a modern strategy classic.