3D Tic-Tac-Toe

3-D Tic-Tac-Toe is a puzzle video game for the Atari 2600 that expands the classic tic-tac-toe into a three-dimensional arena. Players compete on four stacked 4×4 grids, aiming to align four of their symbols vertically, horizontally, diagonally on a single grid, or across the stacked layers, effectively recreating the board game Qubic in a digital format. The game supports two-player multiplayer and is notable for being an early example of a 3-D abstract strategy title on a home console, designed by Carol Shaw.††