The game is a parody of Xena: Warrior Princess, and its setting tries to portray the present day with the same level of accuracy that Xena portrays Ancient Greece – i.e. not much. Historical figures are distorted and confused with each other. Diana, Princess of Wales rides around in shining white motorcycle leathers on a semi-sentient motorbike, doing battle with the war-god, Landmines, and Bonnie Prince Charlie, from whom she took her mystic powers of Royalty. She is aided by Fergie, the Barbarian Red Ken and Wild Bill Gates, while Tony the Vampire Slayer battles the sorceress Thatcher and her masked assassin Archer. The milieu also includes figures such as Emperor Norton, Queen Victoria and the "disease" lepus (described as a scriptwriting error since lepus is actually a reference to rabbits)
There is one supplement entitled Elvis: the Legendary Tours, published as a PDF only. Set in the same world as Diana: Warrior Princess but focusing on America, it describes the exploits of the legendary bard Elvis (no surname is given) and his attempts to return home to the magical Land of Grace, currently ruled by his evil brother Abbot Costello. He is aided in this quest by the "Mystic Power of Music" and companions including barbarian bass player John Lenin, guitarist 'Senator' Joe McCartney, mystic roadie Bob 'The Builder' Marley, frontier law-woman and medic Billie 'Doc' Holliday, and martial artist and shaman Jean Claude Van Halen. The setting is an anachronistic America split into several rival states; Norton's Empire (ruled by Emperor Norton), Martin Luther's kingdom (a theocracy), and a military dictatorship run by demagogue Uncle Sam and his so-called sons, nephews, and other lieutenants; other areas include Indian Territory (with Sikhs and elephants) and dozens of small kingdoms and independent states.
Elvis: The Legendary Tours was one of several spin-off series mentioned in the original game; others included Parton: Lust For Glory, a military adventure series; Toni the Vampire Slayer, in which teenager Toni Blair fought the undead; Gandhi's Angels, a martial arts detective series; and Richard of Hollywood, a Robin Hood parody in which Richard Nixon battles the evil Uncle Sam. In a LiveJournal entry Rowland stated that he does not plan to write Parton: Lust For Glory; the other settings were not mentioned. Subsequent entries have included a cover design for Gandhi's Angels.