User blog comment:SpringThing14/Q&A!/@comment-33969158-20160708222527/@comment-27010092-20160709123529

So...in the FNAF:FC "universe" the only canon games are Five Nights at Fluffy's and MAYBE One Week at Star's. Here's why:

The only reason your games aren't canon are because they go into the future really far, and FNAF:FC basically follows all the normal events of the world. For instance, if you made a mistake about the future, such as the types of animatronics being used, it would mess up FNAF:FC intentions.

Now, don't get me wrong, your games are SPECTACULAR, and you really should keep making them. I'm just saying for what FNAF:FC follows.

Also, chances are, Dylan's early days could be canon. And if any of you want, Frycat's can exist in your universe.

I'm just implying that most of it didn't happen in FNAF:FC's main universe. It's just how the storyline goes, what's possible, that stuff.

Something to add:

FNAF:FC is takes place in a world where all things said about ghosts in the real world are, in fact, correct. For instance, they might come back if they're angry, they take energy from people, that kind of stuff.

Anyways, that was LOOOOOONNNNNNNGGGGGGGGGGGGGGGGG.