Shootup.io is a zombie gunman game. You've been stuck in a strange place. It's just as well, because it's infested with zombies. For you, there is only one choice... ALL OF THEM MUST BE SHOOTED! Build a base or use your car to annihilate the zombies. Join together with your mates or go head-to-head with the other survivors. Bonuses, ammunition, turrets, and landmines will all be unlocked.