Games like The Alley
Games like The Alley include SOMA, What Remains of Edith Finch, Poppy Playtime, Mouthwashing, and Firewatch. We matched them by the tags players give The Alley on Steam (Horror, Psychological Horror, Adventure, Exploration, and Simulation): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Horror · Psychological Horror · Dark

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

Poppy Playtime
Shared: Horror · Psychological Horror · Dark

Mouthwashing
Shared: Horror · Psychological Horror · Story Rich

Firewatch
Shared: Adventure · Story Rich · Exploration

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

Inside the Backrooms
Shared: Horror · Psychological Horror · Adventure

Visage
Shared: Horror · Psychological Horror · Dark

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

Darkwood
Shared: Horror · Adventure · Psychological Horror

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

Detention
Shared: Horror · Psychological Horror · Adventure

Little Nightmares II
Shared: Horror · Adventure · Psychological Horror

Little Nightmares
Shared: Horror · Adventure · Dark

Outlast
Shared: Horror · Psychological Horror · Survival Horror

MiSide
Shared: Psychological Horror · Horror · Story Rich

Lethal Company
Shared: Horror · Psychological Horror · Exploration

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

Outer Wilds
Shared: Exploration · Adventure · Story Rich

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

Fran Bow
Shared: Psychological Horror · Horror · Adventure

SILENT HILL f
Shared: Horror · Psychological Horror · Adventure

The Exit 8
Shared: Horror · Exploration · Psychological Horror

Escape the Backrooms
Shared: Horror · Psychological Horror · Exploration