Killer.io is a classic free for all io game. In which, you will spawn as a maniac. Wander throughout the new map and find out the best ways to conquer the top spot. To be the winner, you need to murder as many online opponents as possible. Play Killer.io unblocked you must master the rules. If you are caught, you will lose immediately. Try to avoid everybody or you will be killed! Choose a character you like and embark on the Halloween party right now!
How To Play Killer.io
Use the arrow keys to move around the map