Games like Real backrooms
Games like Real backrooms include Escape the Backrooms, Outlast, The Forest, Lethal Company, and Platform 8. We matched them by the tags players give Real backrooms on Steam (Adventure, Simulation, Action-Adventure, Walking Simulator, and Puzzle Platformer): closest matches first, and among equally close ones the better-known games.

Escape the Backrooms
Shared: Horror · Adventure · First-Person

Outlast
Shared: First-Person · Horror · Adventure

The Forest
Shared: Adventure · Horror · First-Person

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

Platform 8
Shared: Adventure · Simulation · Walking Simulator

Hello Neighbor
Shared: First-Person · Horror · Action-Adventure

The Outlast Trials
Shared: Horror · First-Person · Survival Horror

Subnautica 2
Shared: Adventure · Horror · First-Person

Five Nights at Freddy's: Security Breach
Shared: Horror · First-Person · Adventure

Sons Of The Forest
Shared: Adventure · Survival Horror · Horror

Little Nightmares II
Shared: Adventure · Horror · Action-Adventure

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

Inside the Backrooms
Shared: Adventure · Horror · Survival Horror

Five Nights at Freddy's: Secret of the Mimic
Shared: Adventure · First-Person · Horror

SchoolBoy Runaway
Shared: Adventure · Simulation · Horror

PANICORE
Shared: Horror · Survival Horror · First-Person

The Cabin Factory
Shared: Walking Simulator · Adventure · Horror

SILENT HILL: Townfall
Shared: Adventure · Horror · Action-Adventure

The Beast Inside
Shared: Adventure · First-Person · Horror

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

Chained Together
Shared: Adventure · Puzzle Platformer · Simulation

Poppy Playtime
Shared: Horror · First-Person · Adventure

Dollmare
Shared: Simulation · 3D · Horror

Visage
Shared: Adventure · Horror · First-Person