In this paper, we present Photogeist, a photography-based augmented reality game in which players use a physical handheld camera device to take pictures of floating virtual ghosts. Players must creep, sneak, and maneuver themselves through physical space in order to approach their ghostly subjects and snap a picture using their paranormal camera. In this paper, we describe Photogeist's inspiration, design, implementation and resultant gameplay. A brief discussion of related games is also included. Categories and Subject Descriptors H.5.1 [Information Interfaces and Presentation]: Multimedia Information Systems