Games like Infliction
Games like Infliction include Outlast, Outlast 2, Mouthwashing, SOMA, and Still Wakes the Deep. We matched them by the tags players give Infliction on Steam (Horror, Psychological Horror, Gore, Adventure, and Indie): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Horror · Psychological Horror · Gore

Outlast 2
Shared: Horror · Psychological Horror · Gore

Mouthwashing
Shared: Horror · Psychological Horror · Indie

SOMA
Shared: Horror · Psychological Horror · Atmospheric

Still Wakes the Deep
Shared: Horror · Psychological Horror · Gore

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

Resident Evil 7 Biohazard
Shared: Horror · Gore · Psychological Horror

Blair Witch
Shared: Horror · Psychological Horror · Adventure

Visage
Shared: Horror · Psychological Horror · Adventure

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

Little Nightmares II
Shared: Horror · Adventure · Psychological Horror

Tiny Bunny
Shared: Horror · Psychological Horror · Atmospheric

Firewatch
Shared: Adventure · Atmospheric · Walking Simulator

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

Little Nightmares
Shared: Horror · Adventure · Atmospheric

Fran Bow
Shared: Psychological Horror · Horror · Adventure

The Beast Inside
Shared: Horror · Adventure · Psychological Horror

Scorn
Shared: Horror · Gore · Atmospheric

What Remains of Edith Finch
Shared: Atmospheric · Adventure · Story Rich

Sally Face - Episode One
Shared: Psychological Horror · Horror · Indie

MiSide
Shared: Psychological Horror · Horror · Story Rich

Welcome to Kowloon
Shared: Horror · Psychological Horror · Adventure

Resident Evil Village
Shared: Horror · Gore · Singleplayer

Amnesia: A Machine For Pigs
Shared: Horror · Psychological Horror · Atmospheric