3-D Tic-Tac-Toe

3-D Tic-Tac-Toe is a video game released by Atari for the Atari 2600 and its 8-bit home computer counterpart.

Gameplay
The game is similar to the traditional game of tic-tac-toe, but is played on four 4 × 4 grids stacked vertically on top of each other; it is basically a computerized version of the board game Qubic using traditional tic-tac-toe notation and layout. To win, a player must place four of their symbol on four squares that line up vertically, horizontally, or diagonally, on a single grid, or spaced evenly over all four grids. This creates a total of 76 possible ways to win, in comparison to eight possible ways to win on a standard 3 × 3 board. The game can be played by two players against each other, or one player can play against a built-in AI on one of eight different difficulty settings.