Infocom Documentation Project
- PDF file of scanned original game manual.
- http://infodoc.plover.net/manuals/zork1.pdf

David Tanguay's Review
- Rated +0 on -5 to +5 scale. Review and some puzzle solutions.
- http://www.sentex.net/~datanguayh/games/zork01_rev.html

Infocom Games: Zork I
- Game information, box photos and blurb, specifications, release information, and sample transcript from manual.
- http://www.infocom-if.org/games/zork1/zork1.html

Loonygames' Bargain Bin Review
- "Zork was the first game I ever played that mixed humor and adventure successfully."
- http://www.loonygames.com/content/1.9/bgnbn/

Adventure Collective review
- Rated 5/5. "Zork I is a must for any text adventure fan, new or experienced." By Karen Tyers
- http://www.adventurecollective.com/reviews/zorki.htm

Infocom Homepage: Zork I
- Description, release information, and packaging details.
- http://www.csd.uwo.ca/Infocom/zork1.html