See also:

• Games: Video Games: Computer Platforms: DOS  (16)
• Games: Video Games: Developers and Publishers: A: Apogee Software, Ltd.  (1)
• Games: Video Games: Developers and Publishers: I: id Software  (2)

Beyond the Pogo - Offers fan art, newsletter, encyclopedia, and editing tools..

Can't Get Enough Commander Keen - Including character lists, cheats, and hints..

Cerebral Cortex 314 - Information, screen shots, downloads, an ASCII art section, level editor, and level sets for Keen 1..

Commander Keen Fan Site - Includes information, screenshots, downloads, cheats and links..

The Commander Keen Web Page - Offers cheats, hints, pictures, downloads, and guestbook..

The Commander Keen Wiki - Fan-maintained reference to the entire Commander Keen universe, including mods and fan made games..

3D Realms: A Look Back at Commander Keen - The history of Commander Keen, includes photos, and screenshots..

GameSpot - Frank Provo reviews the Game Boy Color version. Includes screen shots and passwords. Score: 6.8 out of 10. (June 12, 2001).

pocket.ign.com: Keen! - Offers rumours about a possible version of Id Software's Commander Keen game for the Game Boy Color. (July 26, 2000).