Photogeist Snapping Ghosts' Pictures in an Augmented Realty Game

We discuss the design of Photogeist: an augmented reality game which is based on a physical metaphor of a handheld camera as its main game interface. The gameplay requires the player to physically move around the game scene, sneak up on ghosts, and snap effective pictures documenting them using her paranormal phenomena-sensitive camera. The paper presents the motivation for Photogeist, its game design, implementation and resulting gameplay, as well as brief discussion of related games.