Links and other resources
You can find more information on Castle Wolfenstein on these other sites.
The Digital Antiquarian
Detailed article on Castle Wolfenstein.
The man who made Wolfenstein
Polygon article on Silas Warner, author of Castle Wolfenstein.
MobyGames page for the various versions of Castle Wolfenstein including screenshots, reviews, cover art, and more.
Atarimania (Atari 400/800)
Overview of Castle Wolfenstein for Atari 8-bit computers.