Cinemonster's original list w/ info & rules here

Same as last year, 1 pick for each individual requirement instead of cutting it off at 31

6 countries (other than Italy or US):
UK - Possum
France - Fascination
Spain - [REC]
Australia - Lake Mungo
Canada - The Brood
Japan - World Apartment Horror

9 decades:
1940s - Black Magic
1950s - House on Haunted Hill
1960s - The Haunted Palace
1970s - Messiah of Evil
1980s - Demons
1990s - Lord of Illusions
2000s - The Cell
2010s - Silent Hill: Revelation
2020s - The Monkey

5 Zombie Films:
Night of the Living Dead
Zombie Lake
Zombie Flesh Eaters
The Return of the Living Dead
Scooby-Doo! Return to Zombie Island

3 cult or conspiracy horror films:
They Live
Occult
Dagon

1 film from a Black director with a Black lead:
Us

1 film from a Mexican or Central American director:
Don't Panic

1 Canadian film:
The Gate

1 Russian or former Russian state film:
Viy

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

2 Post Apocalyptic horror films:
28 Weeks Later
28 Years Later

1 Film with dreams or a dream as part of the plot:
Communion

1 The animals are pissed at us film:
Lake Placid

1 Silent film:
The Phantom Carriage

4 based on Novels:
The Keep
Audition
Village of the Damned
Rampo Noir

Any film from THIS list that you haven't seen:
The Beast Within

1 Ernesto Gastaldi written film:
The Case of the Bloody Iris

1 film from 1932:
The Mummy

The Wizard of Oz (rewatch)

And 1 Tobe Hooper Film (There must ALWAYS be a Hooper film):
The Funhouse

EXTRA WORK:
Burn Witch Burn
German Chainsaw Massacre
Trick or Treat (rewatch)