The readme file says "the original DUNGEON game (Zork I)". I believe the use of "Zork I" here is incorrect. The original PDP-10 Zork, which Supnik called Dungeon, was never called Zork I. Zork I was the first in a series of games for microcomputers, the first three of which roughly comprise the same game as the original PDP-10 Zork.
The readme file says "the original DUNGEON game (Zork I)". I believe the use of "Zork I" here is incorrect. The original PDP-10 Zork, which Supnik called Dungeon, was never called Zork I. Zork I was the first in a series of games for microcomputers, the first three of which roughly comprise the same game as the original PDP-10 Zork.