Perplex City is an "alternate reality" game in which players use real-world tools to solve a mystery in a fictional, cyberspace world. In another place, known as Perplex City, a powerful artifact was stolen. It has been hidden away here on Earth by the thieves. Players solve puzzles, found both online and printed on collectable cards, to gain hints to the location of the hidden artifact. The first Earth person to solve the mystery and discover where the artifact is buried wins a real-life prize of 200,000 American dollars (or 100,000 British pounds). ~ All Game Guide