Tetrad

Tetrad is a 3D Tic-Tac-Toe variant. Played on a 4 x 4 x 4 board, players take turns placing an X or an O on the board to try to score four in a row. Designed for 2-player competitive or 1-player versus computer, there are 3 levels of computer difficulty. The first player to play 4 in a row wins. Now try a 3-dimensional Tic Tac Toe and enjoy beautiful color, surprising sound and a choice of 3 levels of difficulty! A real challenge that allows 76 winning combinations. Tetrad adds a new dimension to a familiar game, as you battle the computer or a friend to get 4 in a row in any direction.