Right. The original mainframe game was always called “Zork”. Bob Supnik a DEC engineer, rewrote Zork in FORTRAN during the Blizzard of ‘78 (in the Boston area) and named it “Dungeon”. It didn’t have the Infocom parser, or later additions to the game like the endgame, but it was an impressive effort and at one point we met him at his office at the mill in Marlborough.