Games like It's John's House
Games like It's John's House include Firewatch, What Remains of Edith Finch, No, I'm not a Human, Amnesia: A Machine For Pigs, and Mouthwashing. We matched them by the tags players give It's John's House on Steam (Hidden Object, Investigation, Psychological Horror, Atmospheric, and Mystery): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Atmospheric · Mystery · Walking Simulator

What Remains of Edith Finch
Shared: Atmospheric · Mystery · Story Rich

No, I'm not a Human
Shared: Psychological Horror · Horror · Atmospheric

Amnesia: A Machine For Pigs
Shared: Horror · Atmospheric · Psychological Horror

Mouthwashing
Shared: Psychological Horror · Atmospheric · Horror

Layers of Fear (2016)
Shared: Psychological Horror · Atmospheric · Horror

SOMA
Shared: Psychological Horror · Atmospheric · Horror

Outer Wilds
Shared: Mystery · Exploration · Atmospheric

The Painscreek Killings
Shared: Investigation · Mystery · Exploration

The Forgotten City
Shared: Mystery · Investigation · Exploration

The Room Two
Shared: Hidden Object · Mystery · Atmospheric

Oxenfree
Shared: Atmospheric · Story Rich · Mystery

Sally Face - Episode One
Shared: Psychological Horror · Horror · Story Rich

MiSide
Shared: Psychological Horror · Horror · Story Rich

SILENT HILL 2
Shared: Psychological Horror · Horror · Atmospheric

The Bridge Curse 2: The Extrication
Shared: Psychological Horror · Mystery · Atmospheric

Subliminal
Shared: Psychological Horror · Atmospheric · Mystery

Fears to Fathom - Ironbark Lookout
Shared: Psychological Horror · Atmospheric · Horror

The Park®
Shared: Psychological Horror · Horror · Atmospheric

INFRA
Shared: Atmospheric · Exploration · Mystery

The Casting of Frank Stone™
Shared: Horror · Atmospheric · Psychological Horror

The Test
Shared: Psychological Horror · Story Rich · Multiple Endings

The Room Three
Shared: Mystery · Hidden Object · Atmospheric

Phasmophobia
Shared: Psychological Horror · Horror · Investigation