Games like The Cullfield Ritual
Games like The Cullfield Ritual include Inside the Backrooms, Poppy Playtime, SOMA, Amnesia: The Dark Descent, and Little Nightmares II. We matched them by the tags players give The Cullfield Ritual on Steam (Adventure, Puzzle, Exploration, FPS, and 3D): closest matches first, and among equally close ones the better-known games.

Inside the Backrooms
Shared: Puzzle · Adventure · Horror

Poppy Playtime
Shared: Puzzle · First-Person · Horror

SOMA
Shared: Exploration · Atmospheric · Horror

Amnesia: The Dark Descent
Shared: Puzzle · Horror · First-Person

Little Nightmares II
Shared: Adventure · Puzzle · Horror

Outlast
Shared: First-Person · Atmospheric · Horror

Little Nightmares
Shared: Adventure · Puzzle · Atmospheric

IMSCARED
Shared: Adventure · First-Person · Pixel Graphics

Escape the Backrooms
Shared: Adventure · Horror · Exploration

Outer Wilds
Shared: Exploration · Adventure · Puzzle

Five Nights at Freddy's: Security Breach
Shared: First-Person · Exploration · Adventure

Five Nights at Freddy's: Secret of the Mimic
Shared: Adventure · First-Person · Exploration

Amnesia: Rebirth
Shared: Puzzle · First-Person · Adventure

Lethal Company
Shared: First-Person · Exploration · Horror

Metro Exodus
Shared: FPS · Atmospheric · Adventure

PEAK
Shared: Adventure · Exploration · First-Person

Garten of Banban
Shared: Puzzle · First-Person · Horror

ROUTINE
Shared: Adventure · Puzzle · Atmospheric

Resident Evil 7 Biohazard
Shared: First-Person · Horror · Atmospheric

Endacopia
Shared: Adventure · Puzzle · Exploration

Stray
Shared: Adventure · Exploration · Atmospheric

What Remains of Edith Finch
Shared: Adventure · Exploration · Atmospheric

Backrooms: Escape Together
Shared: Horror · First-Person · Atmospheric

METRO 2033 Redux
Shared: FPS · Atmospheric · First-Person