Horror movies can occasionally float just above the "average" line when it comes to cinematic quality. They're considered more of an "entertainment" genre than anything else. Only a few horror standalone movies and franchises have managed to establish themselves as a quality product of good writing, direction, and execution. In the horror genre, franchises like Paranormal Activity have established a solid fan base by playing with the worst possible human fears of the unknown and out-of-the-box ideas. Paranormal Activity redefined the found-footage trope after The Blair Witch Project and became a prominent club member even though it wasn't as iconic as The Exorcist or The Conjuring.
Source：https://www.cbr.com/paranormal-activity-watch-order/
