Trying to find a 80's DOS roguelike game -- Qvest?

I'm looking for a bit of a miracle here, because I've searched the web high and low and can't find it.

I have vivid memories of playing a DOS-based roguelike in the 80's that looked a lot like Hack or Rogue (rooms connected by tunnels). I think it *might* have said "Qvest" on the title screen? I also remember getting killed on level 8 every time by "Copy Protect Monsters".

Does that ring a bell to anyone?