User blog comment:FazbearFreak/The Future of Five Nights at Steve's/@comment-26813439-20160612010530/@comment-27812664-20160612160142

The Bite of 87 wasn't revealed until FNaF 4. Scott pretty much had to make FNaF 4 to complete the lore.

FNaS' lore was finished with FNaS 3.