Includes an analytical list of rule differences among 18xx games. It covers most games and is maintained by Nick Wedd.

Information on amateur, gamekits, and commercially available games. Features reviews, news, beginner's guide, and overview of existing games.

By Robert Jasiek. An urban game design. Features general and historical information.

This German site is the homepage of the 18xx moderator program. Information about 18xx variants and other free software.

Links and information about the series.