Is it a Sequel or a Prequel-SequelWell here is ur answer. Its a prequel-Sequel. Look at time line below
(Freddy fazbear pizza) (freddy fazbear pizza)
Fredbear diner Fredbear diner FNAF 2 FNAF
1895 1899 1987 1993
The bounse night on FNAF 2 the 6th night it mentioned that the toy ones will roam while the big ones are gonna be sent to a smaller vershion which is no other than FNAF the orignal. The place is Freakishly small compared than FNAF 2.