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KISI: The Deja Vu
〈KISI: The Deja Vu〉 is a 3D anomaly-detection psychological horror adventure game based on the eerie sense of familiarity felt in a sanity-bending experimental facility—the phenomenon known as "Déjà Vu."

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Features
Single-player
Family Sharing
Steam is learning about this game 
Requires agreement to a 3rd-party EULA
Languages:
Interface Full Audio Subtitles
English ✔ ✔
Japanese ✔ ✔
Simplified Chinese ✔ ✔
Traditional Chinese ✔ ✔
Korean ✔ ✔ ✔

Coming Soon To Early Access

The developers of this game intend to release as a work in progress, developing with the feedback of players.

Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“We are launching 'KISI: The Deja Vu' in Early Access to build a better game alongside our community. Player feedback regarding exploration, puzzles, and atmospheric level design will be crucial in refining the game experience prior to full release.”

Approximately how long will this game be in Early Access?

“We expect the Early Access period to last approximately 6 to 12 months. However, this timeframe may be adjusted depending on community feedback and feature development.”

How is the full version planned to differ from the Early Access version?

“The full version is planned to feature additional story chapters, new puzzle mechanics, enhanced narrative presentations, and continuous performance and QoL optimizations.”

What is the current state of the Early Access version?

“The Early Access version is fully playable with core gameplay systems and initial chapters, offering complete access to main puzzle and exploration mechanics.”

Will the game be priced differently during and after Early Access?

“The price may slightly increase upon full release as new chapters and content are added. Early Supporters will be able to purchase the game at a lower price during Early Access.”

How are you planning on involving the Community in your development process?

“We will actively collect feedback via Steam Discussion Boards, Discord, and social media. We plan to closely review bug reports and difficulty suggestions while providing regular update announcements.”
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This game is not yet available on Steam

Planned Release Date: Q4 2026

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About This Game

Game Overview

〈KISI: The Deja Vu〉 is a 3D anomaly-detection psychological horror adventure game based on the eerie sense of familiarity felt in a sanity-bending experimental facility—the phenomenon known as "Déjà Vu."

Players are trapped as test subjects in a disturbing experimental space created by the mad scientist Dr. Hoffmann. Within a perfectly symmetrical, decalcomania-structured space, you must observe surreal anomalies that shift in real time, overcome suffocating hallucinations, and attempt a desperate escape for your life.

Story

"I've never been here before... so why does everything feel so familiar?"

You wake up in a mysterious experimental location filled with chilly coldness and an unsettling silence.

Dr. Hoffmann, a mad scientist obsessed with manipulating human brains and memories, initiates a twisted psychological experiment using you as a test subject.

Two rooms that appear flawlessly duplicated, and a reality that gradually warps alongside cognitive distortions every time you step between them.

Under Dr. Hoffmann’s live surveillance and sadistic testing, players must doubt their own failing memories and senses to find the hidden exit.

Key Features

  • The Horrifying Evolution of "Spot the Difference"

    Going far beyond simple puzzles, this game presents the true essence of the "anomaly detection" genre recreated in a 3D space. Move between two identical-looking rooms and find the subtle changes.

  • 3D Anomaly Exploration from a Test Subject's Perspective

    Explore the entire experimental environment built by Dr. Hoffmann and closely observe subtle distortions occurring within the 3D space.

  • A Struggle of Observation and Cognition

    As you cross back and forth between paired spaces, discover bizarre and horrifying alterations designed to trigger the test subject's brain.

  • Psychological Pressure from a Mad Scientist & Intensified Horror

    Experience peak psychological terror that paralyzes your sanity through brutal sequences, hallucinations born from controlled environments, and the surreal nature of replicated spaces.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Generative AI tools were used during the development process to assist in creating pre-rendered image textures for game assets.

Mature Content Description

The developers describe the content like this:

This game contains mild fantasy violence and dark/horror elements, but does not feature explicit gore, graphic violence, sexual content, or nudity.

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 / 11 (64-bit)
    • Processor: AMD Ryzen 5 5600X 또는 Intel Core i5-12400F
    • Graphics: NVIDIA GeForce RTX 3060 (12GB) 또는 AMD Radeon RX 6600 XT
    • DirectX: Version 11
    • Storage: 9 GB available space
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 / 11 (64-bit)
    • Processor: AMD Ryzen 9 5900X 또는 Intel Core i7-12700K
    • Graphics: NVIDIA GeForce RTX 3080 (10GB) 또는 AMD Radeon RX 6800 XT
    • DirectX: Version 11
    • Storage: 9 GB available space