My first time ever participating! Rules below (and which film(s) falls into each criteria). 
OG list- boxd.it/EsPD6

RULES 2025:

There must be 31 horror films

6 countries (other than Italy or US):
UK
France
South Korea
Canada
Mexico
Japan
Germany
Sweden
Ireland

9 decades:
1920s
1930s
1940s
1960s
1970s
1980s
1990s
2000s
2010s
2020s

5 Zombie Films:
-Night of the Living Dead
-Shaun of the Dead
-Paranorman
-Goal of the Dead
-Train to Busan

3 Cult or Conspiracy Horror Films:
-The Conspiracy
-Children of the Corn
-The Institute

1 film from a Black director with a Black lead:
-Blacula

1 film from a Mexican or Central American director:
-Tigers are Not Afraid

1 Canadian film:
-The Conspiracy

1 Russian or former Russian state film:
-Sputnik

The most popular film from the 1940s that you haven't seen and can access:
-The Wolf Man

2 Post Apocalyptic horror films:
-Threads
-The Divide

1 Film with dreams or a dream as part of the plot:
-Perfect Blue

1 The animals are pissed at us film:
-The Birds

1 Silent film:
-Nosferatu

4 based on Novels:
-Gerald’s Game
-American Psycho
-The Silence of the Lambs
-Let the Right One In

Any film from THIS list that you haven't seen:
-The Descent

1 Ernesto Gastaldi written film:
-Torso

1 film from 1932:
-The Mummy

I have never made a specific film a part of this before, but WIZARD of OZ ('39):

And 1 Tobe Hooper Film (There must ALWAYS be a Hooper film):
-The Toolbox Murders

Misc films (criteria completed, added to reach 31):
-As above, so below
-An Taibhse
-The Devil’s Doorway
-The Killing of a Sacred Deer
-Rumpelstiltskin

+2 Bonus Films from CineMonster:
-The German Chainsaw Massacre
-Trick or Treat