All I have to say is that it's free and better than the two dimensional 3 by 3 version.

I was looking for an iPhone version of this 4x4x4 tic tac toe game but couldn't find it because of it's odd name. I used to play the 3D board game version called Qubix and I wrote my own version when computers still used punch cards. This version plays a hard game at level 10 which I can sometimes beat if I go first. I tied once and it didn't report that the game was over even though there were no moves left. Still it is free, fast, and challenging. The board layout alignment is off so it is hard to see diagonals, but that's part of the callenge. It would be nice if it kept win/loss statistics but maybe you don't want to remember how often it beats you.

This game is the worst game ever