18NYC is an underground railroad building and investment game set in New York City, New York. 18NYC is a game in a series of loosely-related games collectively known as 18xx games, originated by Francis Tresham with 1829. Unique to 18NYC are three corporations with their own colors of track. There is also a government railway, the New York City Transit Authority (NYCTA), that may form as well. Each phase color also has a deck of event cards which are drawn from at the start of each OR.