bombsquare is a global location based wargame for mobiles. You can see other players on Google maps in their actual locations and attack them with wide range of weapons.
It usually takes around 3-4 minutes for an intercontinental ballistic missile to hit your target. Other player get a push-notification about the incoming missile and have to shake the phone or run away to escape it.
Accomplish missions, unlock and buy new weapons; be promoted to a general. Plus you can team up with your friends to build an army to conquer the whole world.