Games like Malice
Games like Malice include Pacify, Escape the Backrooms, Outlast, Lethal Company, and Phasmophobia. We matched them by the tags players give Malice on Steam (Casual, Action-Adventure, Exploration, 3D, and First-Person): closest matches first, and among equally close ones the better-known games.

Pacify
Shared: Exploration · Horror · First-Person

Escape the Backrooms
Shared: Horror · First-Person · Exploration

Outlast
Shared: First-Person · Atmospheric · Horror

Lethal Company
Shared: First-Person · Exploration · Horror

Phasmophobia
Shared: Horror · First-Person · Dark

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

SOMA
Shared: Atmospheric · Horror · Exploration

PEAK
Shared: Exploration · First-Person · 3D

Inside the Backrooms
Shared: Horror · Exploration · Survival Horror

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

Buckshot Roulette
Shared: Dark · First-Person · Horror

Outlast 2
Shared: First-Person · Horror · Dark

The Mortuary Assistant
Shared: Atmospheric · Horror · Demons

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

Choo-Choo Charles
Shared: First-Person · Horror · Action-Adventure

Subnautica 2
Shared: Exploration · Horror · First-Person

Liars Bar
Shared: Casual · 3D · First-Person

Amnesia: Rebirth
Shared: Action-Adventure · First-Person · Exploration

DEVOUR
Shared: Horror · Dark · First-Person

The Outlast Trials
Shared: First-Person · Horror · Survival Horror

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

Sons Of The Forest
Shared: Exploration · First-Person · Horror

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

Species: Unknown
Shared: First-Person · Atmospheric · Exploration