Investigate
EMF reader, thermometer, a spirit box that answers your voice, Geiger counter, infrared projector, cameras, UV light, salt… real ghost-hunting gear.
Co-op horror · 1 to 4 players · PC

Identify the entity… before it finds you.
BETANew Versus modeOne player is the ghostYour team is sent into haunted places to identify the entity lurking there. Gather evidence, cross-check, name it… and never turn off your flashlight.
EMF reader, thermometer, a spirit box that answers your voice, Geiger counter, infrared projector, cameras, UV light, salt… real ghost-hunting gear.
30 entities, each with its own evidence and habits. One only hunts in the dark, another stalks the isolated player. It all comes together in GHOST OS.
When it hunts, hide in a wardrobe, under a bed… and hold your breath. It can hear your voice.


BETA New · BETA
1 player is the entity, up to 4 hunters track it down. The entity secretly picks one of 30 case files, each with a signature power, and sees hunters through walls… but every move leaves evidence.
Six haunted locations, plus event maps that only come back once a year.

Isolation cells, machine room, basement… and longer hunts than anywhere else.

A 1930s family home, frozen since its occupants vanished. And under the garage, a witchcraft cellar.

Closed since its operating theatre burned… and the basement morgue was never emptied.

A modern villa, big bay windows, and a pool you won't want to swim in at night.

A vaulted nave, a bell that tolls on its own when fear rises… and a very dark crypt.

An isolated farm, its barn and hayloft, an attic, a well… and a scarecrow.

Halloween, until November 7: blood moon, cursed pumpkins and a 1978 party gone wrong.

December 1 to January 7: the table is set, the presents are under the tree… nobody ever left.
Update 0.1.56. Versus mode (BETA) gets counterplay and a hidden role.
ReadUpdate 0.1.54. For the first time, one of you will be the entity.
ReadUpdate 0.1.55.
ReadLatest update · October 17, 2026
Incense, crucifix and salt become real weapons against the entity player.
A traitor among you? Optional, enabled by the host in the lobby (3+ hunters).
Roadmap
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