XoCaro.io is a fun multiplayer io game in which you can take part in fantastic tic tac toe battles against other players around the world. The gameplay remains the same as the classic version but instead of three crosses or circles in a row, you must make 5 in a row – this adds an extra dimension of gameplay and makes for some interesting matches.

You can join any open game and challenge random players. Alternatively you can create private games that you can invite your friends and family to! This game is easy to pick up and a great way to have a little fun and challenge your brain. See how your tic tac toe skills add up today and start playing XoCaro!

Release Date

April 2018


Duy Thuc developed XoCaro.io.


  • .io game to play Tic-Tac-Toe
  • You can change the avatar
  • Play privately with your friends
  • In-game chat and emoticons
  • See your win count and rank position


  • Web browser (desktop and mobile)
  • Android


Left click to play.