Games like Dead of Darkness
Games like Dead of Darkness include SOMA, SILENT HILL 2, Resident Evil 7 Biohazard, Darkwood, and Outlast 2. We matched them by the tags players give Dead of Darkness on Steam (Survival Horror, Horror, Story Rich, Atmospheric, and Action-Adventure): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Horror · Story Rich · Atmospheric

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

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

Darkwood
Shared: Survival Horror · Horror · Psychological Horror

Outlast 2
Shared: Horror · Survival Horror · Psychological Horror

Little Nightmares II
Shared: Horror · Atmospheric · Story Rich

Outlast
Shared: Horror · Survival Horror · Atmospheric

SILENT HILL f
Shared: Horror · Survival Horror · Psychological Horror

Resident Evil Village
Shared: Survival Horror · Horror · Story Rich

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

Little Nightmares
Shared: Horror · Atmospheric · Story Rich

Mad Father
Shared: Horror · Psychological Horror · Survival Horror

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

Amnesia: Rebirth
Shared: Action-Adventure · Story Rich · Horror

Look Outside
Shared: Survival Horror · Horror · Pixel Graphics

Poppy Playtime
Shared: Horror · Survival Horror · Singleplayer

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

FAITH: The Unholy Trinity
Shared: Horror · Story Rich · Psychological Horror

DISTRAINT: Deluxe Edition
Shared: Horror · Psychological Horror · Story Rich

Resident Evil 2
Shared: Survival Horror · Horror · Atmospheric

Resident Evil 4
Shared: Horror · Survival Horror · Story Rich

OMORI
Shared: Story Rich · Psychological Horror · Horror

Dead Space
Shared: Survival Horror · Horror · Psychological Horror

Tiny Bunny
Shared: Horror · Story Rich · Atmospheric