I ran across this surfing the web. It's a remake of the Vic 20 game Escape from Mt. Drash. It was made to look similar to the other Ultima games in the series. Here's the link:
http://reconstruction.voyd.net/index.ph ... rd=remakes
Scroll down, it's the 4th one in the list. This also has a very good remake of MT Drash further down the list, but I believe I have seen that one posted here before. If you are an Ultima fan, this site is for you.