FnafVersal War

The FnafVersal War was an all-out conflict across the Fnaf Verse between several variants of Animatronics. The war began when some variants of Animatronics decided to conquer other several parallel realities. The conflict lasted until one of the variants, later known as Unknown, ended the war and created the Unrow Temporal Service in order to prevent another war from happening and protect an isolated collection of realities, that he would refer to as the timelines inside the Fnaf Verse.

Background
Eons before what was considered present day, in the 21st century, an Animatronic from Earth named Unknown discovered there were countless parallel universes on top of his own. At the same time, other variants discovered as well the existence of this Fnaf Verse. These variants made contact, engaging in peace. They shared technology and knowledge to improve other universes and their owns. Unfortunately, other versions of them were conquerors, and saw these new realities as lands to be ruled.

Conflict
The villainous variants began their attack on other universes. This sparked a conflict among all the variants of Animatronics in the Multiverse. The peace between realities was long gone. During this war, each variant fought to the death annihilating other universes to save their own from a ruthless conquest. One variant, later known as Unknown, decided to put an end to the war and so studied and weaponized a fearsome creature capable of consuming time and space itself. Unknown used the crature to defeat all of animatronics variants.

Aftermath
In order to prevent a new Fnafversal War, Unknown isolated all of the Fnaf Timelines, this collection would be called "Fnaf Verse" as they all followed a similar path despite having some differences between each other. This Fnaf Verse was assigned to the Unrow Temporal Service, an agency created by himself to protect the timelines and prevent any further branches from happening, therefore stopping new unscripted realities from coming into existence. The decision to prevent divergences in the timelines, meant individuals could not have free will and were supposed to follow a very strict guide written and controlled by Unknown. The UTS itself got in charge of pruning these new realities only those that could get created by either by Time Travel or unscripted decisions made by individuals inside of their Universe. Unknown brought harmony in the Fnaf Verse as no other variants, had come into existence.