Games like Story 210
Games like Story 210 include Escape the Backrooms, SILENT HILL: Townfall, Phasmophobia, Backrooms: Escape Together, and Outlast. We matched them by the tags players give Story 210 on Steam (Horror, Action, Psychedelic, Psychological Horror, and Adventure): closest matches first, and among equally close ones the better-known games.

Escape the Backrooms
Shared: Horror · Psychological Horror · Adventure

SILENT HILL: Townfall
Shared: Horror · Action · Adventure

Phasmophobia
Shared: Horror · Psychological Horror · Investigation

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

Outlast
Shared: Horror · Psychological Horror · Action

Darkwood
Shared: Horror · Action · Psychological Horror

Five Nights at Freddy's: Secret of the Mimic
Shared: Horror · Action · Adventure

Lethal Company
Shared: Horror · Psychological Horror · First-Person

Total Chaos
Shared: Action · Horror · Psychological Horror

[Chillas Art] The Convenience Store
Shared: Horror · Psychological Horror · Adventure

A Plague Tale: Requiem
Shared: Action · Adventure · Action-Adventure

Pacify
Shared: Horror · Psychological Horror · Exploration

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

SILENT HILL f
Shared: Horror · Psychological Horror · Action

Poppy Playtime
Shared: Horror · Psychological Horror · Adventure

SOMA
Shared: Horror · Psychological Horror · Exploration

The Outlast Trials
Shared: Horror · Psychological Horror · Action

Zort
Shared: Horror · Psychological Horror · Action

The Forest
Shared: Horror · Adventure · Action

The Beast Inside
Shared: Horror · Adventure · Action

Resident Evil Requiem
Shared: Horror · Action · Action-Adventure

In Sound Mind
Shared: Horror · Psychological Horror · Action

Little Nightmares II
Shared: Horror · Adventure · Psychological Horror

Inside the Backrooms
Shared: Horror · Psychological Horror · Adventure