O jogo Zork Zero cobre as razões por trás da queda do Grande Império Subterrâneo. / p>
Lord Dimwit Flathead the Excessive certainly earned his nickname. Never one to do things on a small scale, when Dimwit decided in 789 GUE to have a statue erected in his honor, it had to be the largest statue ever. This angered a local resident of Fublio Valley (where the statue was built), Megaboz the Magnificent, who cast a deadly curse over Dimwit, the royal family, and the entire Empire before disappearing. The king's conjurers employed their most powerful magic in an effort to counteract the curse, but they were unable to save Dimwit and his eleven siblings; they only managed to delay the kingdom's destruction temporarily.
A queda começa como parte do prelúdio do jogo, ocorre durante o jogo e o jogo termina
immediately prior to the original Zork.