"20 Years of Commander Keen"

http://games.slashdot.org/story/10/12/15/0746225/20-Years-of-Commander-Keen (games.slashdot.org)

Commander Keen and its sequels were some of the first video games I played as a child. They were pretty engaging, particularly for a 5-year-old, and while frustrating for somebody with fledgling gamer dexterity, still kept me pretty interested at a time in my life when I couldn't sit still.