Railroad Tycoon games in order

All 5 games of the Railroad Tycoon series in the order they came out, from Railroad Tycoon (1990) to Sid Meier's Railroads! (2006).

1. 
   Railroad TycoonMac, Atari ST, DOS +1 · MicroProse
   741990
2. 
   Railroad Tycoon DeluxeAtari ST, Amiga, DOS +1
   1993
3. 
   Railroad Tycoon IIPC, Mac, Linux +2 · PopTop Software
   8531 Oct
4. 
   Railroad Tycoon 3PC, Mac · PopTop Software
   8127 Oct
5. 
   Sid Meier's Railroads!PC, Mac · Firaxis Games
   7717 Oct