Add Killer.io to your favorite list of io games online! Killer.io unblocked is a new io game that takes you on a new adventure where you have to kill and hide at the same time. The game takes place at a Halloween party where people are all well dressed up in creepy styles. They are so ready to have fun at this party, but they have no idea about you getting ready to kill them. You need to move through the area silently trying to kill as many people as possible without getting caught. If someone catches you in the act, the mission will be failed, causing the game to be over. Therefore, whenever you perform an action, you should be very careful and always stay on the lookout for your surroundings. Don’t forget to use your strategies to outplay the people. Play Killer.io multiplayer game now! Have fun with it!
How to play
Use arrow keys or WASD to move your character. Press Z to kill and X to interact.