Hollow Cocoon

Hollow Cocoon

Released Dec 2023

"Trapped in a cocoon, the silkworm weaves her final dream." Hollow Cocoon is a first-person horror adventure game set in 1980s Japan. Immerse yourself in meticulously recreated environments as you venture into the depths of unspeakable horrors that await you.

92% positive · 934 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence

Where to buy

Steam $7.49 $14.99 −50%
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Evaluation

Hollow Cocoon launched on December 6, 2023 as a self-contained first-person horror adventure with four endings and no post-launch content planned. The store description describes a complete, story-driven experience with no mention of expansions, DLC, or ongoing content. There are no DLC listings of any kind. Since launch, the developer has been actively maintaining the game — adding language support (Korean in December 2023, Italian in January 2024, Indonesian in February 2024, Brazilian Portuguese in April 2024, Vietnamese in July 2024, and Spanish in November 2024) and addressing bugs, including an urgent security patch in October 2025 in response to a Unity engine vulnerability. These updates reflect a developer that cares about maintaining the game for its player base, but they are all localization and technical maintenance work, not new content. There are no announced expansions, no unreleased DLC on the store, and no developer statements indicating future content is planned. The game launched as a finished, standalone product and has received no content additions beyond the base game. The most recent developer communication was the October 3, 2025 security patch.
Evidence
Store page describes a complete, self-contained horror adventure with four endings and no mention of DLC, expansions, or planned post-launch content.
description · Dec 6, 2023 source development ending
high
Developer issued an urgent security patch (Ver. 1.25) in response to a Unity engine vulnerability — the most recent official communication from the studio.
news post · Oct 3, 2025 source development ongoing
low

Media

Details

Developer
Publisher
NAYUTA STUDIO
Achievements
11
Platform
Windows
Controller
full support
Steam Deck
Verified
Players
Single-player

About this game

■What Kind of Game is Hollow Cocoon?

It is a first-person horror adventure game set in 1980s Japan.

Step into the shoes of Minato Jinba, a college student returning to his mother's hometown after receiving news that his grandmother is in critical condition. Hide yourself from the monster and gather vital evidence to unravel the bone-chilling truth lurking beneath the surface!

■The Story

--198X

Minato Jinba, a university student, lives away from his parents in a boarding house in the city.
One night, Minato receives distressing news from his father, Eiji. Minato's maternal grandmother, Kinu Miyama, is in critical condition.
He embarks on a journey to Ichinose, a village deep in the mountains, where his mother was born.

Minato had not seen his grandmother for over a decade and harbors a deep resentment towards her.
She had refused to even attend her own daughter's funeral, further intensifying Minato's disdain.

As the bus rumbles across the country road, Minato recalls his only conversation with his grandmother.

"-- The thing with silkworms, you know; even if they could leave their cocoons, they have no mouths to eat, and their wings do not fly.
They simply lay their eggs and perish."

"People are the reason they suffer this fate."

The sky reddens in the twilight, and the mountains cast an ominous shadow.
Minato finds himself in this house
There, he finds himself in a terrifying situation with a shocking truth.

■Features

-Multiple Endings
Experience a captivating story with four unique endings.
Your choices will lead the story down different branching paths.

-Difficulty Selection
Choose from three difficulty options.
Whether you want to just enjoy the story or seek a challenging experience, the game can accommodate your needs.
*You can switch to a lower difficulty during gameplay (Note: The difficulty cannot be raised).

-Auto-Saving
Both auto-save and manual save options are available.
Even if you get a game over, you can immediately restart from the last checkpoint.

-Motion Sickness Reduction
To alleviate motion sickness, various features are available, including adjustable viewing angles, a central dot display, and the option to disable camera shaking.
Multiple functions are provided to minimize motion sickness caused by visuals.

■Uploading and livestreaming Guidelines

Please adhere to the following guidelines when posting or livestreaming game footage:

-Do not post or livestream content that is offensive or severely undermines the value of the game or its world.
-Include the game's name in the title of the video or livestream.
-Include the store page URL in the summary or description section of the video or livestream.
-Monetization is only allowed when using the monetization functions (*1) provided by video sharing sites such as YouTube. Posting or streaming the game for commercial purposes that does not fall under the above is prohibited. (*2)
-We request you refrain from uploading unedited gameplay footage. Please add or edit the video in some shape or form.
-NAYUTA STUDIO will not be held responsible for any damages incurred by the publisher or any third party resulting from the posting or livestreaming of videos.
-Please note that these guidelines are subject to change without prior notice.

*1: Creator functions on video sharing platforms that allow for revenue.
*2: Examples include screening in stores or using the content in paid events.
Last evaluated Jun 21, 2026
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