Ingress: The Game That Forces You To Leave Your House
Most "mobile" games don't deserve to be called that, since the only activity they incite is limited to your fingers and credit card. Ingress is also an addictive game for mobile devices, but it was designed with a goal in mind even grander than Kate Upton's medieval armor-ensconced boobs. According to creator John Hanke (who's also one of the creators of Google Earth), it's supposed to "get people more deeply in touch with the real world" ... by, uh, convincing them they're part of a futuristic war involving portals and aliens. But it also has them do a shitload of walking, sightseeing, and interacting with real people.
All while looking at your phone. So you've upgraded from hermit to millennial
A game that makes you go outside and talk to strangers might sound like some new scheme cooked up by Craigslist cannibals, but it's actually pretty cool. The gist is that players are divided into two factions, and in order for one side to gain an advantage, they must take part in events and activities that occur at various points of interest (none of which include your basement and/or attic). The activities range from simply standing in a specific place to claim it for your team, to more elaborate actions that involve several players. Apparently, it's engaging enough for the game to have been downloaded over 2 million times, and can result in public parks filling with people, all there for the sole purpose of shooting virtual missiles at one another.
Finally, it's acceptable to roam around parks filled with children while wearing a raincoat and looking disheveled.