Games like Lost in Voice
Games like Lost in Voice include SOMA, Outlast, Layers of Fear (2016), Mouthwashing, and Visage. We matched them by the tags players give Lost in Voice on Steam (Psychological Horror, First-Person, Atmospheric, Horror, and Surreal): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Psychological Horror · Horror · Atmospheric

Outlast
Shared: First-Person · Horror · Psychological Horror

Layers of Fear (2016)
Shared: Psychological Horror · Horror · Atmospheric

Mouthwashing
Shared: Psychological Horror · Horror · Atmospheric

Visage
Shared: Psychological Horror · Horror · First-Person

Still Wakes the Deep
Shared: Psychological Horror · Horror · First-Person

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

POOLS
Shared: Psychological Horror · Atmospheric · First-Person

Outlast 2
Shared: Psychological Horror · Horror · First-Person

MiSide
Shared: Psychological Horror · First-Person · Horror

Amnesia: A Machine For Pigs
Shared: Horror · Atmospheric · First-Person

Firewatch
Shared: Atmospheric · First-Person · Adventure

Amnesia: The Dark Descent
Shared: Psychological Horror · Horror · Atmospheric

Welcome to Kowloon
Shared: Psychological Horror · Atmospheric · Horror

DON'T SCREAM
Shared: Psychological Horror · Atmospheric · First-Person

Scorn
Shared: Atmospheric · Horror · First-Person

Summer of '58
Shared: Psychological Horror · Horror · Atmospheric

Fears to Fathom - Ironbark Lookout
Shared: Psychological Horror · Horror · Atmospheric

Lethal Company
Shared: First-Person · Horror · Psychological Horror

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

From The Darkness
Shared: Psychological Horror · Horror · First-Person

Backrooms: Escape Together
Shared: Psychological Horror · Horror · Atmospheric

Poppy Playtime
Shared: Horror · First-Person · Psychological Horror

The Exit 8
Shared: Psychological Horror · Horror · First-Person