With a wide variety of traps and weapons to choose from, Orcs Must Die! dares players to find the best ways to hack, launch, flatten, gibletize, and incinerate an endless army of filthy orcs and their vile allies. Orcs Must Die! features a vibrant look, addictive gameplay, and a blatant disregard for the welfare of orcs.

Return to the dead world beyond the rifts and conquer a new series of five challenging fortresses. In Lost Adventures you’ll travel from the depths of the Pit to the narrow passages high over the Great Gorge. The Lost Adventures are five of the most deadly rift assaults the War Mage has ever faced.

• Five New Fortresses – Repel the orc onslaught in four completely new fortresses plus a reverse version of The Tower where your enemies have the high ground! Each fortress can be played on Apprentice, War Mage, or Nightmare difficulty.
• Two New Enemies – Fear the icy breath of the Frost Bat, and beware the draining magical attack of the Cyclops Mage!
• New Leaderboards – Challenge your friends for the highest score on leaderboards for each of the five new levels.
• New skull rewards – Earn up to fifty additional skulls to further upgrade your arsenal of traps!
• A New Bonus Defense! - Place the Mana Well in strategic locations around a fortress for a burst of magical energy at just the right moment.

Orcs Must Die!: Lost Adventures will be available on Steam for a special introductory price of $2.99 on Tuesday, November 8th, 2011.