Railroad Tycoon II Platinum

Summary pulled directly from Steam - Some text may only be applicable to Steam platform

Includes Railroad Tycoon II and the expansion The Second Century
It can take you from New York to South Africa. It can take you from the year 1804 to the year 2000. It can take you from penniless manual laborer to powerful multi-millionaire.
It can take you from a normal, well-adjusted, well-rounded person to an obsessed, singled-minded, one-tracked train head. This is a real railroad game, not just a strategy game that happens to involve railroads. If you want to hop on a plane, car or ship, hop on another game.
This game is about trains for people who love trains. Everything about the game is centered around an authentic look and feeling of the railways. Period video and pictures are interlaced with the game. The design and interface are true to the character of the fabled late 1800's railroads. A.I. opponents are based on real people. And all maps are real (based on satellite photography from US Geological Service and other sources).