Crypt of the Undead

Did anyone own this game? I ask, because I very vividly remember the advertisements for it, like this one that appeared in issue #69 of Dragon (January 1983). Epyx was a very prolific publisher of early computer games, some of which I did actually played, but Crypt of the Undead was not one of them. From what I've been able to gather from online sources, it wasn't all that good. If so, that's disappointing, given how evocative this ad is. I'd much rather learn that it's a forgotten gem, so, if you owned or played it, I'd like to know more.