Railroad Tycoon 1

* Cheat:
Press [F1], then [$]. (Or [$],[$],[$],[$],...)
There you have it : free money !


* Someone also sent in this:
Start a new game, make your starting cities and track, then freeze the game.
After that, put your money down to negative $32,000,000.
As amazing as it seems, you have positive $32,000,000!