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One Room Nightmare header art

One Room Nightmare

Turn-based strategy horror. Terror in a confined space. Manage your limited power and time to protect yourself from the oncoming enemies and survive until dawn.

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Developer
Publisher
Release
June 7, 2024
2 years and 56 days ago
Steam Reviews
Very Positive102 reviews81.4%

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Updated: Jul 14, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 14, 2026Publisher scaleThe operating scale of the game's publisher.
Updated: Jul 14, 2026Publisher statusHow the game's publishing relationship is classified.
Search Google: How is One Room Nightmare and RenKon funded?FundingThe known source of funding behind the game.
Updated: Jul 14, 2026Creative controlWho appears to retain creative control of the game.
Updated: Jul 14, 2026Release statusWhether and how the game has been released.

Media

6 items

About the Game

Seek the right answer amidst time's pause.


You find yourself trapped in a room in an apartment.
This room is home to a variety of monsters that are lurking and waiting for you.

Turn on lights, open and close doors, hide in the shadows... You have many options.
Identify the characteristics of the approaching enemy, manage power and time, and act appropriately.

If you make the wrong choice, you will be...


■Features

1. Turn-based system
Time stands still and the enemy does not act until you do.
Think carefully about what you should do next.

2. Research system
Observe enemy behavior to gain experience points.
Use these points to unlock new information and learn countermeasures.

3. Resource Management
This room power is not infinite.
Keep an eye on your remaining power and avoid blackouts.


■Controls

Left click: Interact
Right click: Open notebook
Move cursor to the edge of the screen: Move viewpoint