Tic Stac Toe is a 3-D board game that is, obviously, based on Tic Tac Toe. The board fits together from four pieces, and the pieces themselves are quite sturdy, which is nice. The base pieces fit tightly together, I assume so the stacks of X’s and O’s can stand without wobbling or knocking over the other stacks. My kids enjoy playing it over and over, plus, the game is quick and it's easy to learn how to play. It would definitely make a great party game.