Top trending games of January on YouTube Gaming

The top trending video games—on YouTube—always pique my interest. YouTube looks at the metrics and sees what games are being uploaded a lot, plus what's getting watched a lot. What drives people to watch a bunch of any one particular game? Are they looking for hints and tips; are they looking to make a purchase but can't quite pull the trigger; is it a new game that's not out yet, or an old game with a big update; is there a major esports event going on; did Reddit get ahold of a game and turn it into a thing?

Well, Five Nights at Freddy's 15 isn't on this list, so maybe not that last one. Most of these make sense. But there's always something unexpected to find on here. Like, what's Subnautica? And Boom Beach? Never heard of 'em.

These are the top trending games of January 2016 at YouTube Gaming.