3D Tic-Tac-Toe for the Atari 2600 is a digital rendition of the classic game, expanded into three dimensions. Developed by Atari and released in 1979, this puzzle/strategy game presents players with the familiar objective of aligning a sequence of Xs or Os, but on a complex 4x4x4 cube grid, rather than a simple 2D plane. Players must strategize to align four of their markers either horizontally, vertically, or diagonally across the multi-layered playing field. With the ability to play against the computer or another human opponent, 3D Tic-Tac-Toe offers a challenging twist on an age-old favorite.