TowerMadness HD

"TowerMadness HD is a 3D tower defense strategy game for iPad, known for its addictive gameplay and unique alien-themed levels. Protect your sheep from being turned into scarves using upgradeable weaponry and quick thinking. Winner of multiple awards, including Best App Ever Awards for Best Strategy Game and a finalist for Pocket Gamer Awards, TowerMadness HD offers a unique and engaging gaming experience."