In this exciting game you have to build a high tower consisting of many tiers. Each time, you will have to center the next slab as accurately as possible and place it on the appropriate level. Otherwise, the next element will be shorter by exactly as much as you made a mistake in installing the plate. Your task is to complete the tower to the given line. And, in the event that the object turns out to be even higher, you can get an additional bonus. Good luck!