Games like Backrooms: The Next Level
Games like Backrooms: The Next Level include Inside the Backrooms, Lethal Company, PEAK, SOMA, and Firewatch. We matched them by the tags players give Backrooms: The Next Level on Steam (Adventure, Simulation, Puzzle, Walking Simulator, and Exploration): closest matches first, and among equally close ones the better-known games.

Inside the Backrooms
Shared: Puzzle · Adventure · Horror

Lethal Company
Shared: First-Person · Exploration · Horror

PEAK
Shared: Adventure · Exploration · First-Person

SOMA
Shared: Atmospheric · Exploration · Horror

Firewatch
Shared: Adventure · Walking Simulator · Atmospheric

What Remains of Edith Finch
Shared: Walking Simulator · Adventure · Exploration

Killer Frequency
Shared: Adventure · Puzzle · Simulation

The Exit 8
Shared: Puzzle · Exploration · Walking Simulator

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

Scanner Sombre
Shared: Walking Simulator · Adventure · Exploration

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

Outer Wilds
Shared: Adventure · Exploration · Puzzle

Subnautica 2
Shared: Exploration · Adventure · Horror

ROUTINE
Shared: Adventure · Puzzle · Atmospheric

Platform 8
Shared: Adventure · Simulation · Walking Simulator

The Forest
Shared: Adventure · Horror · First-Person

The Long Dark
Shared: Exploration · Adventure · First-Person

Poppy Playtime
Shared: Puzzle · First-Person · Horror

Species: Unknown
Shared: First-Person · Exploration · Atmospheric

Outlast
Shared: First-Person · Atmospheric · Adventure

INFRA
Shared: Puzzle · Exploration · Adventure

Among the Sleep - Enhanced Edition
Shared: Adventure · Walking Simulator · First-Person

Amnesia: The Dark Descent
Shared: Puzzle · Adventure · Horror

Layers of Fear (2016)
Shared: Walking Simulator · Adventure · First-Person