There's not much to go into about Defcon right now, but Joystiq has the gist of it. Older readers (meaning you're older than 20) will remember the timeless Wargames, starring Matthew Broderick. In the movie, Broderick awakens a self aware computer, who then engages in a launch sequence to enact a nuclear holocaust against the Russians. Great flick. And now, Introversion is going to let you play that, or their version if it. Rejoice now, young ones, for Christmas has come early.