The document discusses pervasive games, which involve gameplay that extends into the real world away from screens. It defines types of pervasive games such as mobile, location-based, ubiquitous, and augmented reality games. Examples like Human Pacman are provided. Issues discussed include the architecture, collaboration, hardware, software, and ethics of developing pervasive games. The document also summarizes several papers on pervasive games and questions if the genre could work within the gaming industry.