Games like Shadow Falls
Games like Shadow Falls include MiSide, Mouthwashing, No, I'm not a Human, What Remains of Edith Finch, and Firewatch. We matched them by the tags players give Shadow Falls on Steam (Horror, Story Rich, Atmospheric, Thriller, and First-Person): closest matches first, and among equally close ones the better-known games.

MiSide
Shared: Story Rich · Horror · Psychological Horror

Mouthwashing
Shared: Horror · Story Rich · Atmospheric

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

What Remains of Edith Finch
Shared: Story Rich · Atmospheric · First-Person

Firewatch
Shared: Story Rich · Atmospheric · First-Person

SOMA
Shared: Horror · Atmospheric · Story Rich

Fears to Fathom - Ironbark Lookout
Shared: Horror · Atmospheric · Psychological Horror

Hellblade: Senua's Sacrifice
Shared: Atmospheric · Story Rich · Horror

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

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

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

The Cat Lady
Shared: Horror · Story Rich · Psychological Horror

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

Outlast
Shared: Horror · Atmospheric · First-Person

Fran Bow
Shared: Story Rich · Horror · Psychological Horror

Poppy Playtime
Shared: Horror · Singleplayer · First-Person

Little Nightmares II
Shared: Horror · Atmospheric · Singleplayer

Little Nightmares
Shared: Horror · Atmospheric · Singleplayer

Resident Evil 7 Biohazard
Shared: Horror · First-Person · Atmospheric

Alan Wake
Shared: Horror · Story Rich · Thriller

Half-Life: Alyx
Shared: Story Rich · Horror · First-Person

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

Oxenfree
Shared: Story Rich · Atmospheric · Horror

The Beginner's Guide
Shared: Story Rich · Atmospheric · First-Person