Alien 911

Alien 911 is a conditionally free arcade action game with a third-person view and tower defense elements in a sci-fi setting, inspired by the games Orcs Must Die!, Dungeon Defenders , and Sanctum. Together with your team or alone, you need to defend aliens from attacking creatures. The game features 4 unique classes, each with 3 abilities, the ability to play with friends up to 4 people, 7 unique maps, and full gamepad support.