Skyscrapers is a building placing puzzle consisting a NxN grid. The aim to to place skyscraper in each square with a height denoted by a number. Each row and column can only have one skyscraper of a certain height. There are clues placed around the grid as numbers. A clue denotes number of skyscraper(s) seen from that side. Features - Unlimited puzzles - Save game state to play later - Unlimited undo - Game play statistics