Games like Cthulhu: The Cosmic Abyss
Games like Cthulhu: The Cosmic Abyss include SOMA, What Remains of Edith Finch, Firewatch, Outer Wilds, and Call of Cthulhu®. We matched them by the tags players give Cthulhu: The Cosmic Abyss on Steam (Adventure, Story Rich, Lovecraftian, Atmospheric, and Psychological Horror): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Story Rich · Atmospheric · Psychological Horror

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

Firewatch
Shared: Adventure · Story Rich · Atmospheric

Outer Wilds
Shared: Story Rich · Adventure · Exploration

Call of Cthulhu®
Shared: Lovecraftian · Adventure · Psychological Horror

Still Wakes the Deep
Shared: Lovecraftian · Psychological Horror · Story Rich

DREDGE
Shared: Lovecraftian · Adventure · Exploration

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

The Witcher 3: Wild Hunt — Remastered
Shared: Story Rich · Adventure · Atmospheric

Fallout 4
Shared: Adventure · Singleplayer · Atmospheric

Night in the Woods
Shared: Adventure · Story Rich · Atmospheric

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

The Casting of Frank Stone™
Shared: Story Rich · Adventure · Singleplayer

Little Nightmares II
Shared: Adventure · Singleplayer · Atmospheric

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

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

MiSide
Shared: Story Rich · Psychological Horror · Singleplayer

The Room Three
Shared: Adventure · Atmospheric · Lovecraftian

SUNLESS SEA
Shared: Lovecraftian · Story Rich · Adventure

Detroit: Become Human
Shared: Story Rich · Singleplayer · Adventure

Amnesia: Rebirth
Shared: Story Rich · Adventure · Singleplayer

Tiny Bunny
Shared: Story Rich · Atmospheric · Psychological Horror

Little Nightmares
Shared: Adventure · Atmospheric · Singleplayer

Sherlock Holmes: The Devil's Daughter
Shared: Adventure · Story Rich · Singleplayer