The Infocom Gallery: Infidel (gray box)
- High-quality scans of gray box packaging, manual, letters, and map.
- http://infocom.elsewhere.org/gallery/infidel/infidel.html

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

Review by Matthew Murray
- Capsule review. "With a lot of flavor and believability, if you don't mind taking the risk of perhaps being unsatisfied by the ending, you should look into Infidel."
- http://www.matthewmurray.net/Reviews/ComputerGames/Infidel.html

Electronic Games Review
- "Infidel offers plenty of challenge, especially once the player has gained access to the lost tomb." By Tracie Forman.
- http://www.csd.uwo.ca/Infocom/Articles/infidel-review.html

SPAG Review
- "Infidel is of medium difficulty, an entertaining game but not a true classic." By Stephen Granade.
- http://www.sparkynet.com/spag/i.html#infidel

MobyGames: Infidel
- Reviews, credits, box image, trivia, and other information.
- http://www.mobygames.com/game/sheet/gameId,62/

Infocom Homepage: Infidel
- Description, box art, release information, game statistics, and packaging details.
- http://www.csd.uwo.ca/Infocom/infidel.html