Pokemon Go was the biggest mobile game of 2016. Actually, it was the biggest ever. Even though its popularity has tapered off a bit, the game is still a very solid free option. Players can explore the real world around them all while catching Pokemon, taking down gyms, and finding Pokestops. New additions include legendary Pokemon, raid battles, and more. The game continues to evolve beyond what many remember it to be. It’s one of the great free Android games.