A few years back, before Pokemon Go was a thing, Niantics had Ingress. It's also a map-based AR game like Pokemon Go where you play between 2 factions (green and blue colored). I was playing as a Blue player round that time. i didn't play the game for long though.
Now, they've released a new version, which I'm excited about. I will definitely try it out! Watch the video above from Niantics Lab for mroe info.