Indiana Jones Chronicles" explains how Indiana becomes solitary and less idealistic following his service in World War I. In "Indiana Jones and the Kingdom of the Crystal Skull", Jones is older and wiser, whereas his sidekicks Mutt and Mac are youthfully arrogant and greedy, respectively. Indiana Jones is modeled after the strong-jawed heroes of the matinée serials and pulp magazines that George Lucas and Steven Spielberg enjoyed in their childhoods (such as the Republic Pictures serials, and the Doc Savage series). Sir H. Rider Haggard's safari guide/big game hunter Allan Quatermain of "King Solomon's Mines", who dates back to 1885, is a
Indiana Jones and the Fate of Atlantis game, William Messner-Loebs and Dan Barry wrote a Dark Horse Comics series based on Barwood's and Falstein's story, then titled "Indiana Jones and the Keys to Atlantis". In an interview, Eaken mentioned hour-long meetings of the development team trying to come up with a better title than "Fate of Atlantis", though the staff members could never think of one and always ended up with names such as "Indiana Jones Does Atlantis". The final title was Barwood's idea, who first had to convince the company's management and the marketing team not to simply call the game "Indy's Next Adventure". LucasArts developed