If you are an analytical, logistics-oriented person who can coalesce money and talent around you to achieve ambitious goals, please submit your application to Railroad Tycoon 2 platinum.
I played this game when it first came out, it's still as solid a title now as it was then, and the mechanics and controls have aged well. While some of the campaign can be quite merciless, I hardly see how that's a problem (considering today's trends towards easy instant satisfaction games).
The AI on the map can leave something to be desired. They build weird routes, and often never expand beyond their two city connections for many years. However, what they lack in physical construction prowess they make up for with their brutal manipulation of the in-game stock market. Which is a peeve, because the market can be very hard to keep up on while you're trying to build a route through rugged mountain terrain, only to find that the dickhole AI has bought out your company, repossessed all of your assets that you put up to start said company, and then locked you out of your office so they can take a big dump on your desk.
But I digress. For the price of the game on the Steam marketplace, you will get a solid return on your investment. hours of fun. Hours of mind numbing track laying, split-screening market trading, and maxing out your profit by alternatively trimming routes and tuning the makeup of the various trains that ply them.