This is a short and simple game. It was converted from the original Commodore Vic-20 game for Windows only. The conversion is designed for 320x200 resolution and doesn't re-size. I played it in Windows 7 64bit fine, though I had to lean to within inches of my monitor to see what was going on (320x200 is rather tiny on a 1366x768 screen.) I also tried it in XP mode, but it still wouldn't resize. Finally, I tried it on my Windows 98 Virtual PC build and it played with the same re-sizing issue, though there were issues on load forcing me to load it twice every time. There may be settings in Virtual PC allowing a re-size, but I could not find them (Virtual PC gives a message "Virtual PC has disabled live resolution switching.")
The game play itself is simple, just move through the dungeon from level to level, avoiding or fighting monsters in the way. In the beginning this is rather simple as there is a map showing the location of the exit and monsters. As you advance things become more difficult (map disappears, monsters disappear, a gem is needed to advance.) You also have a limited number of spells you can use.
Overall, the game is only really good for a few minutes of play. It gets old rather fast and becomes boring. Even when it first came out the graphics and game play were simplistic. Even considering the source platform (Vic-20,) it isn't really all that good. For a die hard Ultima fan, there might be a slight amount of nostalgia involved. Though many Ultima fans don't consider it canon, as it wasn't written by Richard Garriot, or even really approved by him. Sierra had it written and released during the time they had all rights to the Ultima name (Richard Garriot later won those rights back when founding Origin Systems.)
The game is slightly better on a real Vic-20 as it includes music and sound. Though it is only "slightly" better as the music gets rather repetitive after a while, and may actually detract from the experience.