3-D Tic-Tac-Toe is a video game released by Atari, Inc for the Atari 2600 console and Atari 8-bit computers in 1980. The game is similar to the traditional game of tic-tac-toe, but is played on four 4×4 grids stacked vertically; 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 symbols 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 has nine variations: it 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. The game uses the standard joystick controller.
3-D Tic-Tac-Toe was written by Carol Shaw, who went on to greater fame as the creator of Activision's River Raid. The game was remade for the Microsoft Entertainment Pack as TicTactics; this version also allowed the game to be played inside a 3×3×3 grid.
4 different online emulators are available for 3-D Tic-Tac-Toe. These emulators differ not only in the technology they use to emulate old games, but also in support of various game controllers, multiplayer mode, mobile phone touchscreen, emulation speed, absence or presence of embedded ads and in many other parameters. For
maximum gaming enjoyment, it's important to choose the right emulator, because on each PC and in different Internet browsers, the individual emulators behave differently. The basic
features of each emulator available for this game 3-D Tic-Tac-Toe are summarized in the following table: