just by looking at the pictures.
The screenshots were taken from MobyGames, except one I made myself. I cheated a bit by resizing two of the pictures.
If you want to cheat:
There are some interesting design choices...
Also interesting to note that there are some changes between the versions for the price of each piece of equipment. Same thing for the amount of money you have. I am pretty sure that all the screenshots were take at the beginning of the game (100% sure for the one I took obviously and the Amiga screenshot).
I wonder who decided on those changes? Each platform developers? Or were those adjustments made by Southern and Morris after feedback from previous versions?