abstract:TowerMadness™ is a 3D tower defense strategy game for Apple’s iOS and the first release of game developer Limbic Software. Three versions of TowerMadness exist: TowerMadness, the original version released on May 23, 2009; TowerMadness Zero, the ad-enabled version released on October 25, 2009; and TowerMadness HD, the version enhanced for iPad that exclusively includes split-screen multiplayer mode released on May 23, 2010.