Slain.io play, do you want to play boxing game online? We're so excited you like it. We like to introduce you the most fun and fresh games, which is IO. You must choose a PvP server to start the game as a priority. Occupancy must be the point that you need to pay attention to the elections. Now the server is fine and working as lagsiz of Europe and America. As the boxer moves his hand and clicking the mouse to beat your opponents you should start.