Feelies
Infocom did not begin their tradition of including feelies, or extra items related to a game, until the 1982 release Deadline. Later re-releases of the game, however, were packaged with:
- The booklet The Great Underground Empire: A History, by "Froboz Mumbar"
- A map roughly corresponding to a portion of the game's area
Although the back of the Zork I "Grey box" depicted a zorkmid coin included with the other feelies, production difficulties led to the coins' omission from the packages. Zorkmid coins were not included as feelies until the release of the Zork Trilogy boxed set.
Read more about this topic: Zorkmid