Stack World - King of Stacks is a game in which, you control a diagonal-moving block. Your mission is to stop it exactly on top of the previous block. This is done by tapping in absolutely at any spot of the screen. There is almost no delay between your tap and the block stopping, so you have to time it right.If you do it, then you’re awesome and will get another block exactly the same size. If you fail to do it, the part that is left outside of the underlying block will be chopped off and will disappear, and the next block you get will be smaller. If you keep failing to stop the block exactly on top of the previous one, your brick will get smaller and smaller, making the game progressively harder.