1873 Harzbahn is an 18xx variant set in the Harz mountain range in northern Germany. It simulates not only the (narrow-gauge) railroads in that area, but also mines and other plants. Mining in the Harz mountains suffered a major crisis in the end of the 19th century, and the theme of the game is to end this crisis by connecting the mines and other plants to the railroad network - and of course by proper management of the 7 public railroad companies, 15 private mining companies, and up to 5 public mining companies.
1873 has a bunch of fundamental differences to the usual 18xx game, which makes it one of the more distant members of the family (most prominent the totally different system of train operations, route determination, and revenue calculation).
