Ingress is an augmented reality mobile game developed by Niantic, Inc., where players explore the real world to capture and control virtual portals. These portals are often located at public landmarks, such as parks, monuments, and art installations. Players join one of two factions, Enlightened or Resistance, and work together to create links and fields to gain control over areas. The game encourages physical activity and social interaction, as players must travel to different locations to interact with portals. Ingress uses a unique gameplay mechanic that combines strategy, teamwork, and exploration, making it a pioneer in the location-based gaming genre.