Dungeon

Grues

Curiously, for a game whose publication pre-dates the commercial publication of Zork, its roster of potential enemies includes the creatures Infocom made famous, grues. The author must either have spent some time on a terminal (or at an MIT computer lab) playing Mainframe Zork (in a twist, itself also eventually distributed under the name "Dungeon"), or derived it from the same original source the Infocom Imps had read, the Dying Earth novels of Jack Vance.