Ultimate Tic Tac Toe is a HTML Board Game Enjoy this nice version of the classic Tic Tac Toe Game Games Mode Multiplayer mode Play against the pc Challenge a friend playing on the same device. You may have played many Tic-Tac-Toe game until now. But, probably, you haven't played such a entertaining Tic-Tac-Toe game which you will play soon. If you wonder why is that, keep reading, here is few info about this Tic-Tac-Toe game. There is a game that you will play like you are playing in real world, waiting for you. Game sounds and effects make this game superior. If you are ready, let's begin! 2 player game in which the objective is to take turns and mark the correct spaces, play against computer or against a friend. Challenge yourself from a traditional 3 X 3 grid, or custom board size from 5×5 to 8×8.