Cardboard Tube Samurai skin for Orcs Must Die! at PAX

Robot Entertainment has announced that now only will Orcs Must Die! be playable on PC and Xbox360 at their booth at PAX Prime 2011, but they’ll be giving away a special skin for attendees who sign up at the Robot Forums.

Gamers at PAX who visit the boot and sign up for the forums will receive a free Steam code for a War Mage costume based on the Cardboard Tube Samurai from the Penny Arcade comic strip. There will also be the requisite t-shirts, hats and buttons at the booth as well.

If that weren’t enough, the first 200 people to play Orcs Must Die! on each day of the show will receive a signed Orcs Must Die! prequel comic book.

If you’re wondering what the heck Orcs Must Die! is, check out Strategy Informer’s preview here.