Games like Haunted Hotel: Personal Nightmare
Games like Haunted Hotel: Personal Nightmare include The Room, Sherlock Holmes: The Devil's Daughter, The Room 4: Old Sins, Sherlock Holmes: Crimes and Punishments, and Duck Detective: The Secret Salami. We matched them by the tags players give Haunted Hotel: Personal Nightmare on Steam (Adventure, Casual, Action-Adventure, Point & Click, and Puzzle): closest matches first, and among equally close ones the better-known games.

The Room
Shared: Puzzle · Point & Click · Adventure

Sherlock Holmes: The Devil's Daughter
Shared: Adventure · Detective · Puzzle

The Room 4: Old Sins
Shared: Adventure · Puzzle · Point & Click

Sherlock Holmes: Crimes and Punishments
Shared: Adventure · Detective · Puzzle

Duck Detective: The Secret Salami
Shared: Casual · Adventure · Detective

The Roottrees are Dead
Shared: Puzzle · Point & Click · Detective

Chants of Sennaar
Shared: Adventure · Puzzle · Point & Click

The Room Two
Shared: Puzzle · Point & Click · Adventure

Indiana Jones and the Great Circle
Shared: Action-Adventure · Adventure · First-Person

Duck Detective: The Ghost of Glamping
Shared: Casual · Adventure · Detective

The Room Three
Shared: Adventure · Puzzle · Point & Click

Return of the Obra Dinn
Shared: Puzzle · Detective · Mystery

Portal 2
Shared: Puzzle · First-Person · Singleplayer

Strange Horticulture
Shared: Puzzle · Mystery · Point & Click

Escape Simulator
Shared: Puzzle · Adventure · First-Person

The Testament of Sherlock Holmes
Shared: Adventure · Point & Click · Puzzle

Boxes: Lost Fragments
Shared: Adventure · Puzzle · Point & Click

The House of Da Vinci
Shared: Puzzle · Point & Click · Adventure

Murders on the Yangtze River
Shared: Adventure · Puzzle · Detective

Puzzle Agent
Shared: Casual · Point & Click · Puzzle

Atomic Heart
Shared: Adventure · Action-Adventure · Puzzle

There Is No Game: Wrong Dimension
Shared: Adventure · Point & Click · Puzzle

The Rewinder
Shared: Adventure · Puzzle · Mystery

Blue Prince
Shared: Puzzle · Mystery · Investigation