3-D Tic-Tac-Toe (Atari 2600) online game (atarionline.org) 3D Tic-Tac-Toe for the Atari 2600 is an adaptation of the classic tic-tac-toe game with an added dimension, making it a more challenging and engaging experience for players. The game was developed and published by Atari, Inc. in 1980. Instead of the traditional 3×3 grid, 3D Tic-Tac-Toe uses a 4x4x4 cube, providing a total of 64 cells for play.