4D TicTacToe is a unique, fun, easy to play logic game. TicTacToe was invented during boring lectures on a sheet of paper at the University of Essen.
The graphics is simple and two- dimensional (as it can be drawn on a sheet of paper!), but there exist various hidden diagonals and "hyper-diagonals" on the playing field.
To "see" them, imagine that each row of 3x3 (2D) TicTacToe fields form a cube. Furthermore, the three rows can be put together into a four dimensional "hyper-cube".
NOTE: To run 4D TicTacToe on your Mac you will have to open a Terminal window and, after navigating to the game's folder, issue this command from the command line: