3D Ultra Lionel Traintown is a third-person railroading game by Sierra On-Line under the casual game brand Sierra Attractions, licensed by Lionel, LLC. It consists of train layouts, some of which the player can edit. The locomotives include a Union Pacific EMD SW1500 switcher, an Atchison, Topeka and Santa Fe Railway F3A diesel locomotive (usually used to pull passenger trains), a 2-8-0 steam locomotive, and a 1950s passenger railcar. An enhanced version, titled 3D Ultra Lionel Traintown Deluxe, was released on September 30, 2000.