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Project Unknown Wiki

An online co-op horror game featuring unique playable characters and RPG mechanics. Exorcise ghosts using your special abilities and tools while surviving the supernatural onslaught

Steam ↗Windows
GameWiki EditorialReviewed 5 guide topics

GET YOUR BEARINGS

About Project Unknown

Project Unknown puts you in the role of a Paranormal Property Solutions (P.P.S.) operative. You travel to haunted properties, investigate supernatural phenomena, record ghost behavior in a journal, and use specialized tools to exorcise curses so the houses can be sold.

The game offers single‑player, co‑op, and online co‑op modes on Windows. Players must manage limited lighting, confront spreading miasma, and coordinate each team member’s unique ability while staying alive in atmospheric locations.

01 / THE GUIDE

Ghost Investigation

Each property contains visually distinct ghosts. Their movement patterns and attack cues are observable, and the description urges you to write these details in a journal to survive future encounters.

The journal acts as a personal reference; by reviewing notes you can anticipate a ghost’s next move, choose safer routes, and reduce the chance of being caught off‑guard.

  • Note ghost behavior immediately after spotting them.
  • Review teammates’ entries to fill gaps in your knowledge.

02 / THE GUIDE

Light Management

Apparitions dislike light, so the game limits how many lights you can keep on at once. Exceeding that limit risks tripping the breaker, which plunges the area into darkness.

Because the darkness in these homes behaves unusually, you must balance illumination—enough to see hazards but not so much that the power fails.

  • Plan routes that use the minimum necessary lights.
  • Coordinate lighting with teammates to stay within the limit.
Project Unknown official gameplay screenshot
Publisher-provided gameplay image · PsychoRavens

03 / THE GUIDE

Miasma Control

A spreading miasma represents an encroaching phenomenon that can overwhelm a house. You must fight back and cleanse it before it becomes unmanageable, or the client request may fail.

Cleansing typically involves tools such as the Ritual Bell or Curse Sensor, and may be aided by a team member’s special ability.

  • Prioritize miasma hotspots early in the mission.
  • Use the Ritual Bell when miasma density is highest.

04 / THE GUIDE

Team Abilities

The cast includes Eirene, Zay, Luther, and Nyx, each described as having a distinct ability that helps overcome challenges. Their traits range from tarot‑based fate sharing to occult knowledge and gaming reflexes.

Co‑operating lets you match each ability to specific obstacles, allowing strategies that would be impossible for a single player.

  • Assign each teammate a role that fits their unique ability.
  • Communicate cooldowns so abilities can be timed together.

05 / THE GUIDE

Tools and Equipment

You can equip ancient relics and modern ghost‑detection devices, including the Ghost Magnifier, Ritual Bell, Curse Sensor, and Flashlight Unit. These tools blend functionality with visual appeal.

Choosing the right tool for a given threat is essential for navigating hazards and completing exorcisms.

  • Carry a mix of detection and cleansing tools for flexibility.
  • Test each device in a safe area before entering high‑risk zones.

WATCH THE GAME

Project Unknown videos

Official trailers & gameplay

INSIDE THE WORLD

Screenshots & game images

5 official screenshots

IN THIS WIKI

Your reading checklist

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COMMUNITY

Player discussion

    QUICK ANSWERS

    Project Unknown FAQ

    Can I play Project Unknown alone?

    Yes, the game includes a single‑player mode that lets you investigate and exorcise without teammates.

    Is online co‑op supported?

    The title lists online co‑op, so you can join friends over the internet to tackle haunted locations together.

    Which platforms are supported?

    Project Unknown is available on Windows; macOS and Linux are not listed as supported platforms.

    More Project Unknown guides

    SOURCES & CREDITS

    Official resources and further reading

    Original editorial guidance. Game imagery and trailers are provided by the publisher through Steam. Media and reference links checked 2026-10-22. Game versions, supported platforms, and balance can change; consult the linked release notes for current details.