"Zork" is featured in not Evil's hidden Tor search engine. It can be played in the Tor browser. Two parody games were also released, in 1988 titled "Pork: The Great Underground Sewer System", and in 1989 "Pork 2: The Gizzard of Showbiz". The MDL programming language source code of a 1977 version of the original Zork was recovered from tapes and published on Github by the MIT Libraries Department of Distinctive Collections (DDC) on May 5, 2020.