With the coming app-ocalypse, it would seem this classic is well and truly gone forever. Such a shame. It's rare I can recall (and still search for) a mobile game this old. Even the Wikipedia article for Griptonite Games seems to have forgotten this old chestnut in its list of produced titles. This app deserves better.
Ask and you shall receive! This game has been faithfully cloned! https://apps.apple.com/us/app/dungeon-lord/id1624975664