
An abandoned fusion mansion, "The Inumaki Estate." Dive into this 1st-person paranormal investigation horror. As a cursed-property investigator, use advanced devices to record phenomena into digital data, pinpointing coordinates for exorcism. Survive until 6 AM. Can you document the truth?

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The moment demolition began to clear the land, a series of mysterious heavy machinery failures and fatal plunging accidents occurred. Development ground to a complete halt, leaving "The Former Inumaki Estate" abandoned. This beautiful grand mansion, a blend of traditional Japanese and Western architecture reflecting the Taisho Roman era, has remained a desolate ruin since its last resident vanished 20 years ago. The "defilement" enveloping the estate is far too complex; exorcism by ordinary means is impossible. Taking the situation seriously, the Shrine Maiden of Inumaki Shrine requests "you"—a specialist investigator of cursed properties—to conduct a field survey to pinpoint the exact "target coordinates" required for the exorcism.
Your job is not to "dispel" the spirits. It is to use various investigation devices to "record" the inconvenient truths existing within as processable digital data. "I uncover and record the truth. The Shrine Maiden handles the rest." Deep within this derelict house where time stopped two decades ago, can you record the dark karmic ties lingering since the Taisho era and make it out alive?
A "Dual-Nature" Exploration System: Alternating Between Day and Night
Day: Exploration & Puzzle-Solving Explore the silent, hybrid Japanese-Western mansion. Gather clues left behind by former residents, including diaries, hidden riddles, and mementos.
Night: Tense Paranormal Investigation From midnight until 6 AM, the true investigation begins. As the darkness deepens, supernatural phenomena intensify. Witness them with your own eyes and capture them on camera.
A Variety of "Paranormal Investigation Devices" to Sharpen Your Senses In the pitch black, your only lifelines are the readouts of your equipment.
Trifield Meter (Paranormal Meter): The needle fluctuates violently in the presence of spirits.
Microphone Volume Meter: Captures anomalous ambient sounds.
Spirit Box: Listen for spiritual voices through the gaps of radio static.
Ghost Compass (Paranormal Magnet): Indicates the general direction of supernatural activity.
Flashlight & UV Light: Illuminates the darkness and reveals hidden, glowing traces.
Triggering Phenomenon via "Mementos" "Mementos" left deep within the mansion—such as "Red Shoes" or a "Stained Marble"—found during exploration. By using them in specific rooms, you can intentionally trigger more powerful supernatural phenomena. Risk your safety to provoke the spirits and complete your investigation data.
The Sanity-Eroding "Contamination" System Staying in spaces where paranormal activity is active increases the player's "Mental Contamination." Screen distortion, noise, and the sound of your heartbeat will intensify. If you succumb to madness, you will lose consciousness before morning arrives (Game Over). Maintain your sanity, capture the threats on camera, and bring the data back.
The Gradually Unveiled "Investigation Report" Recorded phenomena and items are compiled into your "Investigation Report." Gathering a certain amount of evidence progresses you to the next phase of investigation, unlocking new rooms and gradually revealing the true history of the estate.
Players who want to experience the dreary, creeping dread unique to J-Horror.
Players interested in realistic ghost hunting and paranormal investigation using specialized devices.
Players who enjoy exploring abandoned houses alone and uncovering past mysteries and dark secrets from scattered clues.
Players seeking an immersive horror game focused on "observing and recording" phenomena rather than combat or exorcism.
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Steam lists the 霊障観測シ release date as Q3 2026.
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