Tic Tac Toe is free classic puzzle game also known as "X and O". Play Tic Tac Toe on your Android phone. No need to waste paper! Now you can play Tic Tac Toe on your Android device for free, in a cool glow design. The Tic Tac Toe game is a game for two players, who take turns marking the spaces in a 3×3 grid.