player makes periodic choices and turns to a page that corresponds to that choice. Two novels were published based on the original game: The Zork Chronicles by George Alec Effinger (1990) and The Lost City of Zork by Robin Wayne Bailey (1991). In 1996 Threshold Entertainment acquired the rights to Zork and announced plans to create a Zork movie and live action TV series, though it was never produced. References Sources External links Zork, Zork I, Zork II, and Zork III at the Interactive Fiction Database with downloadable versions for many platforms Zork, Zork I, Zork II, and Zork III at the Interactive Fiction Wiki with downloadable versions for many platforms Source code for a 1977 PDP-10 version of Zork Zork 1970s interactive fiction 1977 video games Activision Blizzard franchises Adventure games Amiga games Amstrad CPC games Apple II games Atari 8-bit family games Atari ST games Classic Mac OS games Commodore 64 games CP/M games DOS games Fantasy video games Games commercially released with DOSBox Infocom games Mainframe games MSX games NEC PC-9801 games PlayStation (console) games Sega Saturn games TRS-80 games Video games developed in the United States Video games with available source code