Grand Inquisitor doesn't seem to be in here (http://www.gog.com/en/catalogue#all_genres/search/zork/), but it's a start?
Btw, I've never played the games but I'd like to... should I start from Zork 1 and then... what? Or are there better entry points to the series?

(and gosh, i was going for a Myst icon as they're all I have, but... your username. *stares* It is pretty.)