Zork III: The Dungeon Master

Zork III: The Dungeon Master is an interactive fiction computer game written by Marc Blank, Dave Lebling, Bruce Daniels, and Tim Anderson and published by Infocom in 1982. Infocom's fourth game, it's the third game in the Zork trilogy. It was released for the Amstrad CPC, Apple II, Atari 8-bit family, Commodore 64, CP/M, IBM PC (as a self-booting disk), MSX, TRS-80, then later for Macintosh, Atari ST, and Amiga.