Category:Commander Keen
{{portal|Video games}}
Commander Keen is the main character in a series of computer games developed by id Software in the early 1990s, which were successful at replicating the side-scrolling action of the NES Super Mario Bros. games in DOS.
Category:ZeniMax Media franchises
Category:Wikipedia categories named after video game franchises
Category:Video game franchises introduced in 1990
Category:Video games about extraterrestrial life