Games like The Hotel
Games like The Hotel include Lethal Company, The Exit 8, Escape the Backrooms, Firewatch, and Amnesia: A Machine For Pigs. We matched them by the tags players give The Hotel on Steam (Horror, Exploration, Walking Simulator, 2.5D, and 3D): closest matches first, and among equally close ones the better-known games.

Lethal Company
Shared: Horror · First-Person · Exploration

The Exit 8
Shared: Exploration · Horror · Walking Simulator

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

Firewatch
Shared: Walking Simulator · Exploration · First-Person

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

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

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

SOMA
Shared: Horror · Exploration · Psychological Horror

Scanner Sombre
Shared: Exploration · Horror · Walking Simulator

Content Warning
Shared: Horror · Exploration · Procedural Generation

Inside the Backrooms
Shared: Horror · Exploration · Psychological Horror

September 7th
Shared: Horror · Exploration · Walking Simulator

Subnautica 2
Shared: Horror · Exploration · First-Person

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

Bad Parenting 1: Mr. Red Face
Shared: Horror · Walking Simulator · Exploration

Still Wakes the Deep
Shared: Horror · Walking Simulator · First-Person

Dreamcore
Shared: Exploration · Walking Simulator · Horror

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

Outlast
Shared: Horror · First-Person · Psychological Horror

PEAK
Shared: Exploration · First-Person · 3D

The Park®
Shared: Horror · Walking Simulator · First-Person

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

DON'T SCREAM
Shared: Horror · Walking Simulator · First-Person

Garten of Banban
Shared: Horror · First-Person · 3D