Released on Septem­ber 14, 1984, this game sold 400,000 cop­ies in ini­tial release, and was No 1 on the best­seller lists for a good part of 1985. Con­sist­ently voted as the fun­ni­est game of all time. The (unof­fi­cial, unfin­ished) sequel is loc­ated here.

via douglasadams.com