Tic Tac Toe is a classic two-player strategy game played on a three-by-three grid. Players take turns placing either an X or O in an empty space, aiming to form a row of three identical marks—horizontally, vertically, or diagonally—to claim victory. Play on easy, medium or hard mode. Challenge yourself against an AI opponent in single-player mode or compete in a turn-based match with a friend. Enjoy playing this classic game here at Y8.com!