By: MPlant Games
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In These Hallowed Halls is a first person, psychological horror puzzle game. Make your way through a decrepit, abandoned mental Institution as you solve puzzles and unravel the story behind what lurks in the darkest corners of the building.
PC (Microsoft Windows) · Oct 3, 2026
Worldwide · Exact date · Full release · IGDB
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9 achievements available.

All Gems Collected
LockedSteam

Collected all the memories
LockedSteam

All tapes collected
LockedSteam

Trap the Ancient God and become the Protector
LockedSteam

Hidden until unlockedSteam

Do you even know what you unleashed?
LockedSteam

You Failed to Remember
LockedSteam

Did it for the Power
LockedSteam

Woke up in these hallowed halls
LockedSteam
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