Games like Flat 207
Games like Flat 207 include Firewatch, What Remains of Edith Finch, Mouthwashing, Layers of Fear (2016), and Sally Face - Episode One. We matched them by the tags players give Flat 207 on Steam (Atmospheric, Mystery, Surreal, Psychological Horror, and Linear): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Atmospheric · Mystery · Adventure

What Remains of Edith Finch
Shared: Atmospheric · Mystery · Walking Simulator

Mouthwashing
Shared: Atmospheric · Psychological Horror · Horror

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

Sally Face - Episode One
Shared: Psychological Horror · Mystery · Atmospheric

Amnesia: A Machine For Pigs
Shared: Atmospheric · Psychological Horror · Mystery

SOMA
Shared: Atmospheric · Psychological Horror · Horror

The Beginner's Guide
Shared: Atmospheric · Walking Simulator · Surreal

Outer Wilds
Shared: Mystery · Atmospheric · Adventure

ROUTINE
Shared: Atmospheric · Psychological Horror · Cinematic

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

Little Nightmares
Shared: Atmospheric · Adventure · Horror

Psalm 5:9-13
Shared: Psychological Horror · Mystery · Atmospheric

Little Nightmares II
Shared: Atmospheric · Adventure · Psychological Horror

No one lives under the lighthouse Director's cut
Shared: Atmospheric · Psychological Horror · Adventure

Detention
Shared: Atmospheric · Psychological Horror · Horror

INDIKA
Shared: Surreal · Mystery · Horror

Fran Bow
Shared: Psychological Horror · Atmospheric · Adventure

Poppy Playtime
Shared: Mystery · Psychological Horror · Horror

Visage
Shared: Psychological Horror · Atmospheric · Horror

Blair Witch
Shared: Psychological Horror · Adventure · Atmospheric

The Room Two
Shared: Mystery · Atmospheric · Adventure

CARIMARA: Beneath the forlorn limbs
Shared: Mystery · Atmospheric · Adventure

Layers of Fear 2 (2019)
Shared: Atmospheric · Psychological Horror · Walking Simulator