Xanadu AR

Xanadu AR is a popular augmented reality game among children and teens that challenges players to hunt down and solve virtual puzzles that are tailored to their local area. For example, the game may place clues to one puzzle at different street intersections, only to reveal that the solution to the puzzle is revealed when the locations of the clues are overlaid on a street map.

There are conflicting rumors that the puzzles found in Xanadu are crafted by a single person, an algorithm, or even an anonymous group of freelance cryptographers that uses the game to identify potential recruits. Others claim that the puzzles are used as a covert communication method by an unknown organization to direct its undercover agents.