Tic Tac Toe is classic free puzzle game also known as "noughts or crosses or sometimes X and O". Our free Tic Tac Toe game offers: 4 different game levels (game difficulties). 2 players game (multiplayer). Different themes (game skins). Game statistics. The Tic Tac Toe game is a game for two players, called "X" and "O", who take turns marking the spaces in a 3×3 grid.