Games like GULLET
Games like GULLET include Idols of Ash, White Knuckle, Lethal Company, Outlast, and PEAK. We matched them by the tags players give GULLET on Steam (Exploration, Platformer, First-Person, Horror, and Simulation): closest matches first, and among equally close ones the better-known games.

Idols of Ash
Shared: Horror · First-Person · Atmospheric

White Knuckle
Shared: First-Person · Horror · Platformer

Lethal Company
Shared: First-Person · Horror · Exploration

Outlast
Shared: First-Person · Horror · Atmospheric

PEAK
Shared: Exploration · First-Person · Adventure

The Forest
Shared: Horror · First-Person · Exploration

Firewatch
Shared: First-Person · Atmospheric · Exploration

The Long Dark
Shared: Exploration · First-Person · Atmospheric

SOMA
Shared: Horror · Exploration · Atmospheric

Cairn
Shared: Exploration · Stylized · Adventure

Rain World
Shared: Exploration · Platformer · Atmospheric

Little Nightmares
Shared: Horror · Atmospheric · Adventure

MOLE
Shared: Horror · Simulation · Exploration

Hollow Knight
Shared: Platformer · Exploration · Atmospheric

Valley
Shared: Exploration · First-Person · Adventure

What Remains of Edith Finch
Shared: Exploration · First-Person · Atmospheric

INSIDE
Shared: Horror · Atmospheric · Dark

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

Outer Wilds
Shared: Exploration · Adventure · Atmospheric

Lorn's Lure
Shared: Horror · Dark · Platformer

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

A Game About Digging A Hole
Shared: Exploration · Horror · Simulation

A Story About My Uncle
Shared: First-Person · Platformer · Adventure

Scanner Sombre
Shared: Exploration · Horror · First-Person