A significant part of the appeal of the Indiana Jones franchise is its ability to connect its viewers and participants to well-known artifacts or concepts. Raiders of the Lost Ark, for example, is a story about the Ark of the Covenant, whereas Indiana Jones and the Last Crusade is about Indy's quest for the Holy Grail — both of which are artifacts that are almost common knowledge. This ultimately increases the intrigue of the story, even before it is told, as artifacts such as these remain mysteries to the world, thereby establishing an innate longing in many to know more about them. Unlike the films, MachineGames' Indiana Jones and the Great Circle revolves around a fairly foreign concept, effectively breaking tradition for the franchise.