Steam Team Station was a 3D game application developed by Duo Games, available to download for free on iTunes. It also had In-App purchases. The company appears to be shut down and the app has since been removed from the iTunes store.
Thomas & Friends Steam Team Station, the app-supported active play device for iPad gets adventurers crawling, jumping, seeking, and racing to help all their favorite engines! Six engine cards interact with Steam Team Station and iPad for fun-filled gameplay that gets kids up and moving. Download the Steam Team Station app from the App Store; includes two free active play games (Steam Engine Relay and Sodor Spot-It) with additional games available for purchase.