Railroad Tycoon 1

Railroad Tycoon 1 cheat codes: 
During play, press TAB and enter the following:
Casey Jones    - Cause all competitors trains to crash.
Overtime       - Stations doble the output of cargo.
Cattle Futures - Gives player 1 million.

Extra Income:
Begin the game and click on the icon to make a tunnel,
then you hold the SHIFT button pressed while you click
in on the wall with water. After that you will see the
following phase one time: estymated income 3.000.000.000! Note:
This will only work one time.

Press [SHIFT] + [4] to get much money.