There must be 31 horror films
6 countries (other than Italy or US)

Argentina - When Evil Lurks
South Korea - The Call
Japan - Battle Royale
Thailand - Shutter
Spain - Sleep Tight
Venezuela - The House at the End of Time

9 decades

1940s The Adventures of Ichabod and Mr. Toad
1950s A Bucket of Blood
1960s The Cremator
1970s Sisters
1980s A Nightmare on Elm Street 3: Dream Warriors
1990s Thesis
2000s Pulse
2010s Summer of 84
2020s Nosferatu

5 Zombie Films

Dead Snow
Pontypool
The Girl with All the Gifts
Fido
Night of the Creeps

3 cult or conspiracy horror films

The House of the Devil
The Babysitter
The Ninth Gate

1 film from a Black director with a Black lead

Ganja & Hess

1 film from a Mexican or Central American director

The Skeleton of Mrs. Morales

1 Canadian film

Possessor

1 former Soviet state film (Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan)

Viy

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

Cat People

2 Post Apocalyptic horror films

The Crazies
A Quiet Place: Day One

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

A Nightmare on Elm Street 4: The Dream Master

1 The animals are pissed at us film

The Birds

1 Silent film

Faust

4 based on Novels

Island of Lost Souls
The Long Walk
Let the Right One In
The Ring

Any film from THIS list that you haven't seen.

Heretic

1 Ernesto Gastaldi written film

All the Colors of the Dark

1 film from 1932

Freaks

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)

Lifeforce

***FOR THOSE THAT LIKE TO DO EXTRA WORK: WATCH Burn Witch Burn, German Chainsaw Massacre & Trick or Treat (1986).