Knife.io is an online game played within a certain area. In this game you must enlarge your character by collecting the blades in the field. You can also capture the blades of players who have fewer blades than you and defeat the player. You should be careful with players who have more knives than you. These players can take your knives and destroy you. Try to stay as far away from them as possible. During the game your field will become smaller and difficult to maneuver. With the money you earn, you can buy new knives; By combining the blades in your hand you can create better blades. Have fun!