Here is Cinemonster's original list to go off from: https://boxd.it/cDGlW
QUICK EASY RULES:
6 countries
8 decades
2 folk horror
4 films from 1981
2 films from your birth year
2 haunted house films
The worst Part 2 that you haven't seen and can access. (I realize that this will take a little work)
1 film set in the woods
1 Kaiju or Kong film (not the new K v. G)
2 Hammer films
3 films with a person of color as director or lead. (excluding Asian)
3 Asian horror films.
And 1 Tobe Hooper Films (There must ALWAYS be a Hooper film)
***FOR THOSE THAT LIKE TO DO EXTRA WORK: WATCH JD's Revenge, The Skull and The Scooby-Doo Project
-review them all. (eek)

I also added in the rule of films I haven't seen so I can try to expand my horizons.

And at least 31 films
Clearly, one film can satisfy multiple criteria.