Zombie Royale.io is a cool upgrade IO game in which you have to survive for as long as possible to earn money and improve your characters skills. This free online game on Silvergames.com will take you to a post-apocalyptic town packed with evil, bloodthirsty zombies who will do everything possible to eat your brains.
Try to find other living humans laying on the field to rescue them and join your team. Your soldiers will shoot automatically at incoming zombies, so you will only have to run away from them or get close enough to start shooting. Have fun playing Zombie Royale IO!