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

The Infocom Gallery: Planetfall  
   High-quality scans of gray box packaging, manual, letters, ID card, and postcards.
   http://infocom.elsewhere.org/dsinclair/planetfall/planetfall.html

Adventure Collective Review  
   Reviewed by John Alston Campbell. "Planetfall is a good playground for beginners to learn some of the basics of adventure gaming."
   http://www.adventurecollective.com/reviews/planetfall.htm

MobyGames: Planetfall  
   User reviews, credits, box image, trivia, and other information.
   http://www.mobygames.com/game/sheet/gameId,51/

Matthew Murray's Capsule Review  
   "Though certain no heavy-duty mental challenge, if you are looking for a somewhat interesting science-fiction game, and have a fair amount of patience, Planetfall might just be worth your time."
   http://www.matthewmurray.net/Reviews/ComputerGames/Planetfall.html

Infocom Games: Planetfall  
   Box art and description, specifications, and sample transcript.
   http://www.infocom-if.org/games/planetfall/planetfall.html

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