Tic Tac Toe is a popular game for two players who use X and O. Tic Tac Toe is the popular game in a pop-up window. Click the icon in your browser and start playing. The goal of Tic Tac Toe is to be the first player to get three in a row on a 3 x 3 grid. In Tic Tac Toe the real player is assigned an icon X and always makes a move first. The player who is playing "X" always goes first. Players alternate placing Xs and Os on the board until either one player has three in a row, horizontally, vertically, or diagonally; or all nine squares are filled. If a player is able to draw three of their Xs or three of their Os in a row, then that player wins. If all nine squares in Tic Tac Toe are filled and neither player has three in a row, the game is a draw. Try to defeat the computer in the Tic Tac Toe. The real player is assigned an icon X and always makes a move first.