Games like The Exit Project: Backstreets
Games like The Exit Project: Backstreets include The Exit 8, Layers of Fear (2016), Lethal Company, What Remains of Edith Finch, and Scanner Sombre. We matched them by the tags players give The Exit Project: Backstreets on Steam (Psychological Horror, Walking Simulator, Horror, First-Person, and Puzzle): closest matches first, and among equally close ones the better-known games.

The Exit 8
Shared: Walking Simulator · Horror · Puzzle

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

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

What Remains of Edith Finch
Shared: Walking Simulator · First-Person · Atmospheric

Scanner Sombre
Shared: Walking Simulator · Horror · Exploration

Platform 8
Shared: Psychological Horror · Walking Simulator · Puzzle

Garten of Banban
Shared: Horror · Psychological Horror · First-Person

Firewatch
Shared: Walking Simulator · First-Person · Atmospheric

SOMA
Shared: Psychological Horror · Horror · Atmospheric

Inside the Backrooms
Shared: Horror · Psychological Horror · Puzzle

Poppy Playtime
Shared: Horror · First-Person · Puzzle

MiSide
Shared: Psychological Horror · Horror · First-Person

POOLS
Shared: Psychological Horror · Walking Simulator · First-Person

Mouthwashing
Shared: Psychological Horror · Horror · Walking Simulator

Amnesia: A Machine For Pigs
Shared: Walking Simulator · Horror · Psychological Horror

September 7th
Shared: Horror · Walking Simulator · Psychological Horror

The Death | Thần Trùng
Shared: Psychological Horror · Horror · Puzzle

The Cabin Factory
Shared: Psychological Horror · Horror · Walking Simulator

INFRA
Shared: Walking Simulator · Puzzle · Exploration

Dreamcore
Shared: Walking Simulator · Psychological Horror · Exploration

Backrooms: Escape Together
Shared: Horror · Psychological Horror · First-Person

Psalm 5:9-13
Shared: Psychological Horror · Horror · Walking Simulator

DON'T SCREAM
Shared: Psychological Horror · Horror · Walking Simulator

Summer of '58
Shared: Horror · Psychological Horror · Walking Simulator