Tic Tac Toe HD app is a modern version of ancient classic game. Tic Tac Toe is a simple, free, fun and addictive game for 1 or 2 players. You can play as single player against Android or play with your friends or relatives. One player plays X and the other O, taking 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. In next game the winner of the previous game is the one who starts the game. If no one wins, it’s a draw.