Zork: The Undiscovered Underground

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Zork: The Undiscovered Underground
Developer(s)	Implementors (Marc Blank, Michael Berlyn, Kevin Wilson)
Publisher(s)	Activision
Series	Zork
Platform(s)	Commodore 64
Release	WW: August 28, 1997
Genre(s)	Interactive fiction
Mode(s)	Single-player

Zork: The Undiscovered Underground is an interactive fiction video game written by former Infocom Implementors Marc Blank and Michael Berlyn and implemented by G. Kevin Wilson using the Inform language. The game was commissioned by Activision as a free promotional product to coincide with the release of Zork: Grand Inquisitor.^[1] It was released on August 28, 1997.