Game Classification

Zork I (Zork: The Great Underground Empire - Part I, ZORK I: The Great Underground Empire , Zork I: The Great Underground Empire, Zork I: Le Grand Empire des Ténèbres, Zork) Infocom (Tim Anderson, Marc Blank, Dave Lebling and Bruce Daniels) (U.S.A.), Personal Software / Infocom (U.S.A.), 1980 Play it Now !