Playing tic-tac-toe too easy!? Now think in 3 dimensions. Hmmmm... In this 3D version of the Tic Tac Toe game the X's start the game, you have 14 playing moves to complete rows vertically, horizontally and diagonally through the 3x3x3 cube board. You need to play defensively and offensively to win the game. Once the 3x3x3 cube board is full, the player with the most completed rows of three wins.