Well, this is unexpected.

Right now you can buy Five Nights at Freddy's 3 on Steam for 7.99. Unlike the second game, 3 is a sequel set in the future:

Thirty years after Freddy Fazbear's Pizza closed it's doors, the events that took place there have become nothing more than a rumor and a childhood memory, but the owners of "Fazbear's Fright: The Horror Attraction" are determined to revive the legend and make the experience as authentic as possible for patrons, going to great lengths to find anything that might have survived decades of neglect and ruin.

At first there were only empty shells, a hand, a hook, an old paper-plate doll, but then a remarkable discovery was made...

The attraction now has one animatronic.

Now brace yourself: every YouTuber alive is about to make a few Five Night's videos.

If you don't mind spoiling yourself on the experience, you can already watch Markiplier go through some of the game here: