Games like Inner Voice
Games like Inner Voice include Mouthwashing, SOMA, No, I'm not a Human, Layers of Fear (2016), and What Remains of Edith Finch. We matched them by the tags players give Inner Voice on Steam (Psychological Horror, Horror, First-Person, Adventure, and Story Rich): closest matches first, and among equally close ones the better-known games.

Mouthwashing
Shared: Psychological Horror · Horror · Story Rich

SOMA
Shared: Psychological Horror · Horror · Story Rich

No, I'm not a Human
Shared: Psychological Horror · Horror · Story Rich

Layers of Fear (2016)
Shared: Psychological Horror · Horror · First-Person

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

Firewatch
Shared: Adventure · Story Rich · First-Person

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

Sally Face - Episode One
Shared: Psychological Horror · Horror · Story Rich

Outlast
Shared: Horror · First-Person · Psychological Horror

MiSide
Shared: Psychological Horror · Horror · Story Rich

SILENT HILL 2
Shared: Psychological Horror · Horror · Story Rich

The Cat Lady
Shared: Horror · Psychological Horror · Adventure

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

Fran Bow
Shared: Psychological Horror · Horror · Story Rich

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

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

Little Nightmares II
Shared: Horror · Adventure · Psychological Horror

Visage
Shared: Psychological Horror · Horror · First-Person

Blair Witch
Shared: Horror · Psychological Horror · Adventure

Little Nightmares
Shared: Horror · Adventure · Atmospheric

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

Outer Wilds
Shared: Exploration · Adventure · Story Rich

Darkwood
Shared: Horror · Psychological Horror · Adventure

Layers of Fear 2 (2019)
Shared: Psychological Horror · Horror · Story Rich

