By Chris Morris

PHILADELPHIA (CBS) – On today’s APP-tastic and outta SITE – Ingress.

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Fight for control of the world in one of two warring factions – as you explore the areas around you. The Ingress app has players travel to real-world locations to ‘take control’ of portals around landmarks by ‘hacking’ them (which, in reality basically involves checking in, much like you would on FourSquare).

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It’s a niche game, but it’s one of the few that insists you get off the couch and go outside to play.

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Check out the Ingress app.