Two-player tic tac toe Two players compete to place their marks—X or O—on a 3x3 grid in this traditional strategic game. Try to align three marks in a row, column, or diagonal before your opponent does. Take turns filling up empty cells. Carefully plan your actions, anticipate your opponent's approach, and thwart their attempts while generating winning possibilities. For friends or family, the game's local multiplayer mode offers a fast, competitive, and enjoyable gaming experience. Each game pushes players to plan ahead and outwit their opponent in order to win, making it ideal for honing strategic thinking and reflexes.