Zork: The Undiscovered Underground

aka: ZTUU, Zork: The Undiscovered Underground - a text adventure prequel to Zork Grand Inquisitor
Moby ID: 19360
Macintosh Specs


This was a free game released by Activision to celebrate and promote their newest game, at the time, Zork: Grand Inquisitor. It is a text only adventure done in the style on the original Zork games.

The year in 1066. You're a private, 7th class, in the Inquisition Guard. After getting relieved of your post at the Port Foozle Inquisition Gift Kiosk, you see the Pastor of Disaster, the Minister of Sinister, the Grand Inquisitor. It looks like he has a job for you. Yes, you. After asking about other, ANY other, guards to go instead, you have your orders. Sigh. Very well. Archaeologists have unearthed a tunnel that seems to lead to a new section of the Great Underground Empire or GUE. You are to enter this tunnel and explore the Great Underground Empire. You'll be back in no time. You hope.

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Credits (Commodore 64 version)

5 People (4 developers, 1 thanks)

Written by
Programmed by
Converted by
using PC-to-C64 conversion software developed by



Average score: 53% (based on 3 ratings)


Average score: 2.3 out of 5 (based on 9 ratings with 1 reviews)

Not a bad little game.

The Good
This is a quick little jaunt through yet another section of the Great Underground Empire -- any Zork fans will immediately recognize the setting. If you have done any sort of interactive fiction games before, you will have no trouble moving around the map and manipulating items.

The story is amusing and is very much true to the spirit of the original Zork games. It is very short, if it takes you much longer than an hour or so then you are doing something very wrong (with one notable exception, which I will discuss in the next section).

Puzzles are well done for the most part, and you can even play through to a couple alternate endings. This impressed me, especially given the overall brevity of the game.

The Bad
There is one "puzzle" (yes, that's deliberately in quotes) that I believe to be unnecessarily unfair and annoying, particularly to players who have spent any time playing other Zork games. I won't give away any details in this review, but suffice to say that it deals with a light source and it is an EXTREME departure from the way that previous Zork games dealt with the light source. I had to look it up in a walkthrough, and then spent some time swearing at the game when I read the "solution".

Once you figure it out, it turns into a perpetual annoyance that will bug you until you finish the game.

(I will submit the solution separately in the Tips/Tricks section for those who are either curious or frustrated.)

The Bottom Line
This game was made freeware by Activision in order to promote the release of Zork: Grand Inquisitor (along with the original Zork I, II, and III). You will need a Z-Code interpreter to play it; the download of the game comes with one, or you can use your own. Overall, even though it's very short, it should be considered a "Should-Play" game for any fans of the Zork series.

Windows · by Mirrorshades2k (274) · 2006


Activision did not actually release, or plan to, a Commodore 64 version of this game. Dimitris Kiminas converted the Windows version using software created by Paul David Doherty.


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  • MobyGames ID: 19360
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Contributors to this Entry

Game added by LepricahnsGold.

Browser added by Pseudo_Intellectual.

Additional contributors: Mirrorshades2k, Pseudo_Intellectual.

Game added October 1, 2005. Last modified August 17, 2023.