Ingress is an Augmented Reality Game created by the Google department called Niantic Labs. It was released on November 15th 2012 with an amazing backstory.

The world around you is not what it seems. Our future is at stake and you must choose a side.
Join my faction in Ingress – a global game of mystery, intrique and
The play area is the whole world, and most of it is already populated with “Portals”.
You must go out into the world to find and interact with.
Ingress forces you to work as a team with other players.
Ingress is very fun, addicting.
It’s designed in a way that requires you to go out into the world around you.