Idle Killer is a terrific clicker game that you can play on this page, free of charge. The game uses HTML5 to run smoothly in most browsers. You can play Idle Killer in full-screen to avoid any distractions. It has been played by 104,637 people and has been rated 8.5 / 10 with 453 votes. If you enjoyed this game, check out our other clicker or Paper Minecraft and Merry Clickmas.