Urban gaming represents a new form of media and entertainment in which game designers create place-based activities that allow participants to experience cities through play. Scavenger hunts, outdoor puzzle races, augmented reality, and orienteering are common examples of urban games. These activities gamify the city by presenting participants with challenges and competitions to complete while moving about the city, searching for secret locations and objects, taking part in contests, cracking codes, and deciphering riddles. Some urban games are played without the help of mobile phones and apps, while others are driven by technology. This chapter provides a methodology and other support to urban changemakers designing their own games.