In this game, you are on a mission to destroy the alien invaders on the space station. As you are playing, you will be faced with various weapons, such as guns, sniper rifles, grenade launchers, etc. In this game, you can choose to play offline or online. In offline mode, you will have to find the way to the space station. You will have to defend yourself and your friends from the aliens. You will have to defend the space station and kill the aliens. In online mode, you can play with your friends on a computer or on the mobile device.