

Steam is used to deliver additional routes and locomotives in the form of downloadable content. It is a Steamworks title, which means it uses and requires Steam to activate and to deliver core game updates. The first release of RailWorks contained all five real-world routes of the original European and North American releases of Rail Simulator, and added three new fictional routes: Hedborough North, a large UK goods yard, Seebergbahn, a route set in the Alpine region and Castle Rock Railroad, a route based around Denver, Colorado. It is the successor to Rail Simulator, and was released online on 12 June 2009 and in stores on 3 July 2009.

Train Simulator Classic (originally RailWorks and Train Simulator) is a train simulation game developed by Dovetail Games.
