Tic-tac-toe is a pencil-and-paper game which now available in iOS. This game is for two players, X and O, who take turns marking the spaces in a 3×3 grid. The player who succeeds in placing three respective marks in a horizontal, vertical, or diagonal row wins the game.
Single Player: Play against iOS with three difficulty levels.
Two Player: Two player can play using this mode.
Network Play: Play with game center friend.
All scores have been stored in game center. You can any time see your and other player's score in game center.