From textfiles https://twitter.com/textfiles on Twitter: The 1977 source code for ZORK has been recovered from MIT tapes and released on github. I cloned the repository at https://github.com/historicalsource/zork-1977-source and the official MIT github set is at https://github.com/MITDDC/zork https://twitter.com/textfiles/status/1258483768010190849/photo/1 https://chirp.cooleysekula.net/attachment/65129