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易阈症

Released Jan 1, 2026by Threvorn SeepNo user reviews(Steam reviews)

Peratosis is a psychological mystery visual novel where you follow Yiluo into hidden threshold spaces that emerge at the edges of perception. Explore, interact, and make choices as you encounter those who linger there—and decide whether to cross further.

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About 易阈症

Peratosis

Some places only reveal themselves when something inside you begins to hurt.

Peratosis is a psychological mystery visual novel centered around exploration, dialogue, and choice.

You follow Yiluo, a girl sensitive to subtle shifts at the edges of the world.

There are moments that don’t belong to day or night,

and places that seem to exist just outside ordinary experience.

They surface quietly—when something feels off,

when something lingers,

when something inside refuses to settle.

A stalled elevator that still responds.

A dim corridor washed in unfamiliar light.

Rooms that feel unchanged—until they are not.

As you explore deeper, the boundaries begin to shift.

Not everything is meant to be crossed—

but every choice draws you closer to what waits beyond.

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Features

Atmospheric psychological mystery storytelling

Branching narrative driven by player choices

2–3 different endings

A world shaped by “threshold spaces” and emotional perception

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Additional Information

Approximately 30,000 words (Chinese script)

Developed with Void Novel Engine

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Note

The game currently supports Simplified Chinese. Additional language support and expanded gameplay content are planned for future updates.

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Game details

易阈症 — frequently asked questions

When does 易阈症 release?

Steam lists the 易阈症 release date as 2026.

How much will 易阈症 cost?

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System requirements

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10
  • Processor: Intel Core 2 Duo or higher
  • Memory: 2 GB RAM
  • Graphics: DirectX 9.0c compatible
  • DirectX: Version 9.0c
  • Storage: 500 MB available space
  • Sound Card: DirectX compatible
  • Additional Notes: 64-bit system recommended

Recommended

Recommended:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10
  • Processor: Intel Core i3 or higher
  • Memory: 4 GB RAM
  • Graphics: DirectX 11 compatible
  • DirectX: Version 11
  • Storage: 1 GB available space
  • Sound Card: DirectX compatible
  • Additional Notes: None

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