The cover design
and the illustrations in the manual were done by famous artist
Alan Cober, who at that time was already very well known for
his work at "New Yorker" magazine and others publications.
Alan Cober died on January 17, 1998 due to a heart attack.
is also another case of "the cover was not ready when
the catalog had to be printed" - the image in the 1984
catalog is only a prototype.
For the promotion
of the game during the 1985 Consumer
Electronics Show ("CES") Infocom rented a mansion
and invited 5000 people as "murder suspects."