3D Quadracube is described by Artic as a new version of 3D Tic Tac Toe or Connect Four.
The screen shows a large 3D cube composed of 64 smaller cubes. You and your opponent
(either the Spectrum or another player) take turns at nominating a small cube in your own
colour with the object of making a continuous row, column or diagonal of four.
The large cube is sliced into four sections for clarity and the game is easy to play (though
not so easy to beat the Spectrum).