Sorry to bump a 4 year old thread but someone might find this interesting.
I have an additional version that I don't think has been mentioned in this topic yet..
Its version 1.0.6.021, May 1995
It was distributed in Australia (maybe other countries too) on a CD containing Theme Park and Transport Tycoon.
This version does NOT have the martian landscape/scenario editor.
It fixes the money rollover problem where you can build a massive tunnel and have the cost added to your account instead off subtracted. From my limited testing it seems that versions 1.0.6.011 and earlier would roll over at around 2 billion, in this version I've had more than 10 billion in my account.
I also noticed that when you get a red error popup from illegal construction or holding shift to get a quote, you can clear the popup by right-clicking. In earlier versions you had to click the X to close the window.
EDIT: After further testing I've found that version 1.06.016 (english, Feb 1995) has these two fixes as well- nonetheless this version is here for comparative purposes as well.
I've had a poke around with a hex editor and this may just be a localised version for non-British English markets. In the TYCOON.EXE file some strings have changed- Tonne has changed to Ton, Quit has been replace with Abandon in some places. 'Trident' has been added to the list of video cards to display on the About Transport Tycoon dialog. There may be more but that's all I've found so far.
This is the version that I played to death many years ago
I didn't get my hands on the Deluxe version, or the version with the scenario editor/martian landscape until years later. I had a 486SX25 with 8MB RAM and it absolutely chugged, a game year would take more than 2 hours towards the end of the game when I had maxed out the number of allowed vehicles, but I loved the game so I just kept playing anyway.
I have provided a link here for comparison purposes, contains installers for English, French and German versions.http://dl.dropbox.com/u/9151127/TT106021.zip