What what ! For a moment there I thought you was joking due to amount there is, well you’re not far wrong, here a complete list of them even tho some aren’t really sequels etc and just amityville by name or cashing in.
https://en.m.wikipedia.org/wiki/Work...ville_haunting
The Amityville Horror July 27, 1979
Amityville II: The Possession
Amityville 3-D November 18, 1983
Amityville III: The Demon,
Amityville 4: The Evil Escapes May 12, 1989 TV film aka Amityville Horror: The Evil Escapes or Amityville: The Evil Escapes
The Amityville Curse May 7, 1990 Direct-to-video
Amityville: It's About Time July 16, 1992 aka Amityville 1992: It's About Time
Amityville: A New Generation September 29, 1993
Amityville Dollhouse October 2, 1996
The Amityville Horror April 14, 2005 Theatrical
The Amityville Haunting December 13, 2011 Direct-to-video
The Amityville Asylum June 3, 2013
The Conjuring July 19, 2013 Theatrical James Wan Chad Hayes and Carey W. Hayes Part of The Conjuring Universe, only mentioned before the film's ending.
Amityville Death House February 24, 2015 Direct-to-video
The Amityville Playhouse April 13, 2015 Limited theatrical release aka The Amityville Theater
Amityville: Vanishing Point April 1, 2016 Direct-to-video
The Conjuring 2 June 7, 2016 Theatrical Part of The Conjuring Universe. The Amityville haunting is depicted in the prologue, while the rest of the film deals with the Enfield case.
The Amityville Legacy June 7, 2016 Direct-to-video Re-released as Amityville Toybox in 2020.
The Amityville Terror August 2, 2016
Amityville: No Escape August 5, 2016
Amityville: Evil Never Dies June 2017 Sequel to The Amityville Legacy, re-released as Amityville Clownhouse in 2020.
Amityville Exorcism January 3, 2017
Against the Night September 15, 2017 Limited theatrical release aka Amityville Prison
Amityville: The Awakening October 28, 2017 Theatrical
Amityville: Mt. Misery Road May 31, 2018 Limited theatrical release
The Amityville Murders October 9, 2018
Amityville Island March 17, 2020 Direct-to-video
Amityville Vibrator June 6th, 2020
Witches of Amityville Academy October 2, 2020 Limited theatrical release aka Amityville Witches
The Amityville Harvest October 8, 2020