Steel Superstructure is a brand new puzzle game developed in-house by TrackMill. In it you are required to navigate user-created industrial mazes of varying difficulty using an array of mechanical equipment to collect all of the golden nuts in each stage. It's tricky, it's new, and it's ONLY at TrackMill.com - Your source for one-of-a-kind gaming and collaboration.
First, you must pick one of the four keys. Then, your buddy must navigate through the maze of the four rooms. Will you pick the right key and collect all of the gold?