Progress - 31/31 - COMPLETE!

Original list

QUICK EASY RULES:
There must be 31 films

6 countries (not all listed)

Mexico - Huesera: The Bone Woman
France - High Tension
Germany - Nosferatu the Vampyre
England - Scream and Scream Again
Italy - Deep Red
USA - The Burning

8 decades (not all listed)

1950s - The Thing From Another World
1960s - The Cremator
1970s - Deep Red
1980s- The Burning
1990s - New Nightmare
2000s - Midnight Meat Train
2010s - The Battery
2020s - Titane

2 post apocalyptic or natural disaster related films

The Battery
The Night of the Comet

1 film with Robert Englund

Eaten Alive

1 something is underground film

Alligator

3 Satan/Devil centered films

Lisa and the Devil
Anything For Jackson
The Day of the Beast

1 Amicus film

Scream and Scream Again

The worst Dracula film (by Letterboxd rating) that you haven't seen and can access. 

Dracula 3D

1 LGBTQ+ connected film

Titane

5 Films from De Palma, Wes Craven, Ken Russell, Hitchcock and/or Morehead & Benson.

Swamp Thing (Craven)
Sisters (De Palma)
New Nightmare (Craven)
Phantom of the Paradise (De Palma)
The Endless (Moorhead/Benson)

2 Peter Cushing films

Shock Waves
Scream and Scream Again

1 film based on a work of or invoking the name Bram Stoker

Nosferatu the Vampyre

1 film based on a Clive Barker story

Midnight Meat Train

1 film that was released the year that you turned 10

Shock Waves (1977)

1 Mario Bava film.

Lisa and the Devil

1 film with an 'x' in the title

Slaxx

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

Eaten Alive

And since all categories are filled, I get a bunch of wildcards!