fnaf lore may contain spoilers

The core Five Nights at Freddy's (FNaF) lore revolves around business partners William Afton and Henry Emily, who start Fredbear's Family Diner with dangerous "springlock" animatronics, but Afton's murders of children (including Henry's daughter Charlie) haunt the animatronics, leading to possessed robots, tragic deaths (like the Bite of '83 and '87), and Afton's own demise trapped in a Spring Bonnie suit, only to return as a digital virus (Glitchtrap/Afton), causing more chaos and possessing people like Vanny, all while the spirits seek revenge and escape.