Games like Whittingham Asylum: The Investigation
Games like Whittingham Asylum: The Investigation include Little Nightmares II, Poppy Playtime, Danganronpa: Trigger Happy Havoc, Danganronpa 2: Goodbye Despair, and MiSide. We matched them by the tags players give Whittingham Asylum: The Investigation on Steam (Casual, Detective, Psychological Horror, Adventure, and Horror): closest matches first, and among equally close ones the better-known games.

Little Nightmares II
Shared: Adventure · Horror · Psychological Horror

Poppy Playtime
Shared: Horror · Singleplayer · Psychological Horror

Danganronpa: Trigger Happy Havoc
Shared: Detective · Visual Novel · Psychological Horror

Danganronpa 2: Goodbye Despair
Shared: Detective · Psychological Horror · Visual Novel

MiSide
Shared: Psychological Horror · Horror · Singleplayer

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

Escape the Backrooms
Shared: Horror · Psychological Horror · Adventure

Little Nightmares
Shared: Horror · Adventure · Singleplayer

Firework
Shared: Horror · Psychological Horror · Puzzle

[Chillas Art] The Convenience Store
Shared: Psychological Horror · Horror · Casual

Sally Face - Episode One
Shared: Psychological Horror · Horror · Adventure

Danganronpa V3: Killing Harmony
Shared: Detective · Visual Novel · Psychological Horror

Return to Shironagasu Island
Shared: Adventure · Horror · Psychological Horror

Doctor Who: The Lonely Assassins
Shared: Casual · Adventure · Psychological Horror

Who's Lila?
Shared: Psychological Horror · Horror · Detective

The Test
Shared: Simulation · Psychological Horror · Singleplayer

Getting Over It with Bennett Foddy
Shared: Psychological Horror · Singleplayer · Horror

Raging Loop
Shared: Psychological Horror · Adventure · Detective

MOLE
Shared: Psychological Horror · Adventure · Horror

The Room Two
Shared: Horror · Puzzle · Adventure

The Room
Shared: Adventure · Puzzle · Singleplayer

Milk inside a bag of milk inside a bag of milk
Shared: Psychological Horror · Horror · Visual Novel

SIMULACRA
Shared: Detective · Horror · Psychological Horror

That's not my Neighbor
Shared: Casual · Adventure · Horror