Slain.io unblocked game is a combat in which you need to kill all of the enemies in the map and achieve the top level so as to become the winner. Each of players will be equipped with two special same weapons. You should swing them your way to attack and beat the others accurately and quickly. Also, block in time to escape their hits. Slain.io Multiplayer is the new io game. You are able to play the battle online at school or home. Let’s enter the arena and try to survive for a long time!