18CH is a railroad-building and investment game set in the country of Chile, in South America. 18CH is a game in a series of loosely-related games collectively known as 18xx games, originated by Francis Tresham with 1829. 18CH features a government railroad — The Empresa de los Ferrocarriles del Estado Railway (EFE) — a long narrow map, and five small narrow-gauge railways called "nitrate corporations", which were built to connect the mines with these resources to major Chilean ports.