Stack is a simple one button game, where must stack the tile as high as possible. Simple and Beautiful graphics design.
Try to place the tile exactly on the one before it will not lose size. Sloppy placement on the other hand will cut off the blocks and making them smaller and smaller until it gets impossible to add more blocks. You can play Stack Tower on your own and try to unlock all achievements or you can play against your friends and try to beat them.
As Always, Good Luck and Have Fun.