World of Subways, is a series of subway simulations created by TML-Studios. There are currently 4 volumes. All volumes are standalone programs and can not be modified. Unlike most train simulations, the routes are short and modeled at near reality detail levels, each volume has only one route included with no other routes available with the exception of Volume 1. However the total amount of drivable track in Volume 1 is significantly less than other volumes with only 13.8 miles included.
Volume 1 takes place in the PATH (Port Authority Trans-Hudson) system. It covers the entire rail system of 22.2 km (13.8 mi) of track and 13 stations, which connects between the downtown areas in the borough of Manhattan in New York City and a few cities in the state of New Jersey. Usable rolling stock includes the refurbished PA2 and PA3 rail cars and the non-furbished PA4 rail cars.
An expansion pack was released containing five new missions and additional options.