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 first Indy-based game presented in three dimensions, as opposed to 8-bit graphics and side-scrolling games before. There is also a small game from Lucas Arts "Indiana Jones and His Desktop Adventures". A video game was made for young Indy called "Young Indiana Jones and the Instruments of Chaos", as well as a video game version of "The Young Indiana Jones Chronicles". Two Lego Indiana Jones games have also been released. "" was released in 2008 and follows the plots of the first three films. It was followed by "" in late 2009. The sequel includes an abbreviated reprise of the