Games like Fiak
Games like Fiak include Outlast 2, Resident Evil 7 Biohazard, SOMA, Outlast, and SILENT HILL 2. We matched them by the tags players give Fiak on Steam (Indie, Horror, Atmospheric, Psychological Horror, and Realistic): closest matches first, and among equally close ones the better-known games.

Outlast 2
Shared: Horror · Psychological Horror · Atmospheric

Resident Evil 7 Biohazard
Shared: Horror · Atmospheric · Survival Horror

SOMA
Shared: Horror · Atmospheric · Psychological Horror

Outlast
Shared: Horror · Atmospheric · Psychological Horror

SILENT HILL 2
Shared: Horror · Psychological Horror · Atmospheric

Resident Evil Village
Shared: Horror · Survival Horror · Action

The Evil Within 2
Shared: Horror · Psychological Horror · Story Rich

Little Nightmares
Shared: Horror · Atmospheric · Indie

Mouthwashing
Shared: Horror · Psychological Horror · Atmospheric

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

The Beast Inside
Shared: Horror · Indie · Psychological Horror

Ready or Not
Shared: Realistic · Horror · Psychological Horror

Visage
Shared: Horror · Psychological Horror · Atmospheric

MiSide
Shared: Psychological Horror · Horror · Story Rich

Resident Evil 4
Shared: Horror · Action · Survival Horror

Five Nights at Freddy's
Shared: Horror · Indie · Psychological Horror

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

Resident Evil 2
Shared: Horror · Survival Horror · Atmospheric

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

Poppy Playtime
Shared: Horror · Psychological Horror · Singleplayer

METRO 2033 Redux
Shared: Atmospheric · Horror · Story Rich

Little Nightmares II
Shared: Horror · Atmospheric · Psychological Horror

In Sound Mind
Shared: Horror · Psychological Horror · Atmospheric

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