Spin-Tac-Toe combines Tic-Tac-Toe with a bit of luck. Instead of being able to mark a space directly you must use a spinner to decide if you can mark that square in the 3x3 field or not. Each square has a half of the spinner circle colored red for "O" and blue for "X". On your turn, if you spin your color you can mark the square. If not, you can't. The winner is the first to make a line of three. As in regular Tic-Tac-Toe it is possible for a tie.