Difficulty	Standard
Author	Marc Blank/Dave Lebling
Release	1980
Units Shipped	429,079

Zork 1

The Great Underground Empire

Your greatest challenge lies ahead and downward.

It beckons you into a world fraught with danger and discovery. Using all the cunning you can must, you'll plunge far below the surface of the earth in search of the incomparable treasures of Zork. But this is no mere treasure hunt. During your amazing journey, you'll come face to face with creatures so outlandish, they defy description. And you'll wander through an underground domain so vast, with so many twists and turns, it can offer you new surprises no matter how many times you explore it.

Greybox

Browsie

Feelies

Disks

Solid Gold

Folio

Mastertronic

Commodore 64

PDP-11

Now here's a real treat -- courtesy of Jason "Textfiles" Scott and the Get Lamp documentary project, we have the manual for the PDP-11 release of Zork I. The PDP-11 release predates even the Personal Software TRS-80 edition. The manual this PDF was created from was personally autographed by Mark Blank, Joel Berez and Dave Lebling. Purportedly, less than 100 of the PDP-11 release were sold.

Personal Software

InvisiClues

Downloads

Zork 1 for MS-DOS (requires DOS or emulator)

Zork 1 for Macintosh (requires Mac emulator)

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Stuffies

- Each game also came packaged with "stuffies", non-game-specific items which varied according to system or over time. Since these items were not game-specific, they have their own section in the Infocom Gallery.

Product Catalogs Brochures and advertising for other Infocom products.	Registration Cards Product registration cards. Registered users also received a free 1-year subscription to Infocom's quarterly newsletter.
Flyers Flyer offerings for other products, mostly Infocom's line of Invisiclues hint books for help for stuck adventurers.	Interactive Fiction Reference Cards Infocom games were availalble for more than thirty different computer platforms. Each game camed packed with a reference card providing platform-specific installation and operating instructions.