The Zork and Myst series are very similar in some ways. Both concern lost and/or fallen underground civilizations with special powers or abilities. Both are oriented around puzzles and story more than other games. Both have ended due to reasons best described by the phrase 'commercial viability'. I ...

"Damn few!"

That's right isn't it?

I agree. Zork Zero is certainly my favorite of the Zork games I've played for these reasons.

'Hanging from roots', under the world, is a great location. Especially if you let go.