Stack Builder Skyscraper is a fun building challenge game. The game is simple but the materials are coming down at the right time and if they are connected just right then you will get a high score. If it is a little difficult for you, there are options to help you, line aiming and slowing down. The game is endless mode and if the skyscraper you built collapses then you will fail. What is the best score you can achieve? Come on and take the challenge!