Night Owl Games has announced their Facebook strategy hit, Dungeon Overlord, is making its way to the App Store and Android Marketplace in the form of a companion app. Dungeon Overlord puts the player in the less than surprising role of an overlord of a dungeon. In order to build the best dungeon possible, the player will need to build an army, gather resources, and build structures - and later this year they'll be able to check their progress on the go.