Galaxy Stack – space shooter for IOS where you play it like Tetris. In this game you take control of your spaceship and destroy the alien invaders, putting them wrecked ships in the tower. The aliens decided to take over your planet and you have to resist them, and to intimidate to create a tower of their ships. Shoot approaching you ships and put them on top of each other. During the game collect enough points and unlock new weapons and unique ships. Prepare for battle with the powerful bosses.