Tic Tac Toe is a classic two-player paper-and-pencil game played on a 3x3 grid. Players take turns marking a vacant cell with their designated symbol, which is typically "X" for one player and "O" for the other. The objective is to form a line of three of your own symbols horizontally, vertically, or diagonally before your opponent does. The game is simple yet strategic, often serving as a quick and engaging pastime. Its also known as "Noughts and Crosses" in some regions.