Killer.io is an amusing killing game. You can check it out on this page, for free. The game is powered by HTML5 technology to run in all modern browsers. You can play Killer.io in full-screen to avoid any distractions. DAB3Games created Killer.io. It has been played by 14,460 people and has been rated 8.5 / 10 by 182 people. Did you like playing this game? Then check out our other killing or Angry Zombie and Shooting Range Simulator.