Mahjong Dimensions is the classic Mahjong game but with a twist. The tiles are placed on a 3d cube that you can spin around. The matching tiles can be on the opposite of the cube, who knows? This gives this version of the mahjong game a very unique twist. Just like the original mahjong game you can only match 2 tiles that are not in the middle of the other tiles. So you can only connect the tiles that are free.