One of the stories from GDC 2015 we had to sit on was our interview with Niantic Labs about their upcoming title called Endgame. Well today we can finally talk about everything including a bit of the gameplay we saw for Endgame: Proving Grounds. For those of you not familiar with these developers, Niantic Labs are the folks behind the rather unique location-based game Ingress. So what is Endgame: Proving Grounds about? We sat down with Niantic Labs during GDC 2015 to find out all about it.