GameZone writes: "Master of the Monster Lair is like a virtual pet. You must nurture it (constantly evolve your dungeon), feed it (constantly level your characters), and treat it with never-ending care. It'll come to mind when you're trying to sleep and, if you let it, consume your time when trying to watch TV, which quickly becomes a listening experience. It is a game that, like a virtual pet, wants your undivided attention.
If that's what you look for in a game, Master of the Monster Lair is one of the best RPGs you could play. Otherwise this won't be the next game you'll want to master."