Gratuitous Space Battles is a unique strategy game where you play the role of supreme commander of a vast fleets of spaceships, battling against AI controlled or player-designed enemy fleets. GSB is not a conventional strategy game, but more of an RTS/Tower Defense hybrid, where you design the ships, position the fleet, issue pre-battle orders and then sit back and watch the explosive galactic mayhem take place. Did you include enough fusion beams on your capital ships? Maybe you should have assigned some fighters to escort those ships in the middle of the fleet? GSB also allows you to challenge other players by uploading your best fleets to serve as their opposition, in a massively single-player galactic smorgasbord of laser-death!