These are great and good working copies of the games, but in all honesty if you could track down copies of the Atari ST versions of all three you'll have far and away better sound, graphics, and overall appearance. Give it a google to look for the screenshots, and you'll see them to be a far cry better than the low-color counts in the PC version of the time.
Absolutely a joy and a good throwback to the early era- The granddaddy of TES games and System shock among others!