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Mysterium: A Psychic Clue Game

Mysterium: A Psychic Clue Game

Live

StrategyBoard game

Platforms
Release:
2017
Developer:
Asmodee Digital, Playsoft, Twin Sails Interactive
Scale:
Average concurrent players≈ 4.8
Player rating:
75.2% · 929
Profile data as of:
October 1, 2026

Mysterium is a cooperative deduction game set in the 1920s in which a ghost guides a group of psychics to uncover a murderer, as well as the weapon and location of the murder, using only visual clues.

Official website

Screenshots

Images from the source page, in source order. Select an image to view it full size.

Videos

Videos from the game’s source page, in source order. Select one to open the original.

Overview

Franchise
Unknown
Release date
  • Windows — January 12, 2017
  • Linux — 2017
  • iOS — 2017
  • Android — 2017
Developer
Publisher
Age rating
  • ClassInd 10 — Ages 10+ · Steam Store
Content warnings
Not specified by the storefront
Interaction modes
Single-playerMultiplayerOnline PvPOnline co-opCross-platform play
Session capacity
  • 7 online co-op · IGDB mirror
Access model
  • One-time purchase
Monetization
  • In-app purchases
Storefront price
  • $6.99Steam, US storefront
Store contents
  • 2 DLC · Steam Store, November 1, 2026
Languages
EnglishRussianUkrainianGermanFrenchSpanishItalian

Classification

Genres
StrategyBoard game
Evidence:
Setting and subject matter
Unknown
Camera
Isometric
Evidence:
Visual style
Unknown
Combat system type
Unknown

Scale

Concurrent players · period average

≈ 4.8

October 3, 2026 — November 1, 2026

under 100over 1 million
Detailed value
4.75
Observations
60
Coverage
Steam
Origin
Calculated
Confidence
High — 60 measurements on 30 UTC dates over 30 days; 4 of 4 six-hour windows; 0 of 60 scheduled opportunities missing
Basis
Approximate average from 60 Steam player count measurements on 30 UTC dates: 4.8
Calculation rule
concurrent_from_probes_v3
Date observed
November 1, 2026
Source
Steam Web API

Concurrent players · period peak

≈ 16

October 3, 2026 — November 1, 2026

under 100over 1 million
Observations
60
Coverage
Steam
Origin
Calculated
Confidence
High — 60 measurements on 30 UTC dates over 30 days; 4 of 4 six-hour windows; 0 of 60 scheduled opportunities missing
Basis
Highest observed value from 60 Steam player count measurements on 30 UTC dates: 16
Calculation rule
concurrent_from_probes_v3
Date observed
November 1, 2026
Source
Steam Web API
Ratings
  • players75.2% · 929Steam, US storefront · Steam reviews
  • players48.7%Global · IGDB mirror
  • critics75%Global · IGDB mirror
Last update

Concurrent players

period average · January 2017 — August 2026 · Steam · published by source · Steam Charts

960
January 2017August 2026
Change over period
−60%decrease from 9.7 (January 2017) to 3.8 (August 2026)
Gaps
No gaps in observed months
Observations
116

Mechanics

Key game systems from the Mechanics Catalog. Assessment axes are independent and are not combined into a single score. An unassessed mechanic is unknown, not absent.

  • Clan system

    Not assessed

    A persistent player organization created or recognized by the game itself, with a stable membership, a life beyond one session, a shared identity, functions, and goals.

  • Player economy

    Not assessed

    An in-game system where player decisions materially influence at least part of the production, supply, distribution, or price of in-game value.

  • Territory control

    Not assessed

    A system where players or organizations capture, hold, and use parts of the game world with lasting consequences.

  • Competitive PvP

    Not assessed

    Structured competition between players with rules and a measurable outcome, usually including skill-based matchmaking.

  • Live service and updates

    Not assessed

    A regular rhythm of meaningful updates, including seasons, patches, events, and a roadmap that supports a long product life.

  • Character progression

    Not assessed

    A system for long-term character or account development through levels, skills, equipment, and specializations.

RealmScanner is a research catalog for multiplayer games. Data comes from public sources; coverage and evidence appear beside each assessment.