The Game Census
Mysterium: A Psychic Clue Game cover art

Mysterium: A Psychic Clue Game

Twin Sails Interactive · 2017-01-12

Steam

Strategy

Modes: Single player, Multiplayer, Co-operative · Perspectives: Bird view / Isometric

Releases: Jan 12, 2017 (Android), Jan 12, 2017 (PC (Microsoft Windows)), Jan 12, 2017 (iOS), Jan 12, 2017 (Linux)

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.

Mysterium: A Psychic Clue Game is a Strategy game released in 2017, priced at $1.46, with an estimated 100,000 .. 200,000 owners and Mostly Positive (75% of 922 reviews).

1
playing now
75%
positive of 922 reviews
Mostly Positive
steam's rating (official)
100,000–200,000
owners (SteamSpy est.)
75/100
critic score (1 outlets, IGDB)
49/100
IGDB user rating (5 ratings)
platinum
deck/linux tier (ProtonDB)
Verified
Steam Deck (Valve)
SteamOS: Playable
$1.46
steam price (US)

1 players in-game as of 2026-10-14 15:00 UTC (census sample)

Health check

Quietly active
  • · 1 players in-game at the last census sample.
  • · 43 reviews in the last 8 weeks (~5/week).
  • · Review velocity up 105% vs the prior 8 weeks.
  • · Top 15% of 14,082 Strategy games in the census by review count.

Health tier since 2026-08-31

Estimated sales: 23k–55k copies

Review-multiple estimate from 922 total reviews — how this is computed.

All-time low: $1.74 at Steam (2019-09-26) · bundled 4×via IsThereAnyDeal

Review momentum

PositiveNegative
303020172026Week of 2017-12-01: 1 negativeWeek of 2018-01-01: 3 positiveWeek of 2018-01-01: 1 negativeWeek of 2018-02-01: 2 negativeWeek of 2018-03-01: 1 positiveWeek of 2018-04-01: 2 negativeWeek of 2018-07-01: 1 positiveWeek of 2018-07-01: 1 negativeWeek of 2018-08-01: 1 positiveWeek of 2018-08-01: 2 negativeWeek of 2018-09-01: 1 positiveWeek of 2018-10-01: 2 positiveWeek of 2018-11-01: 5 positiveWeek of 2019-01-01: 3 positiveWeek of 2019-04-01: 1 positiveWeek of 2019-05-01: 3 positiveWeek of 2019-06-01: 2 positiveWeek of 2019-06-01: 1 negativeWeek of 2019-07-01: 2 positiveWeek of 2019-07-01: 1 negativeWeek of 2019-08-01: 3 positiveWeek of 2019-09-01: 5 negativeWeek of 2019-10-01: 4 positiveWeek of 2019-10-01: 3 negativeWeek of 2019-11-01: 2 positiveWeek of 2019-11-01: 1 negativeWeek of 2019-12-01: 4 positiveWeek of 2019-12-01: 3 negativeWeek of 2020-01-01: 5 positiveWeek of 2020-02-01: 1 positiveWeek of 2020-03-01: 8 positiveWeek of 2020-03-01: 4 negativeWeek of 2020-04-01: 30 positiveWeek of 2020-04-01: 5 negativeWeek of 2020-05-01: 14 positiveWeek of 2020-05-01: 1 negativeWeek of 2020-06-01: 5 positiveWeek of 2020-06-01: 2 negativeWeek of 2020-07-01: 7 positiveWeek of 2020-08-01: 1 positiveWeek of 2020-09-01: 8 positiveWeek of 2020-09-01: 1 negativeWeek of 2020-10-01: 11 positiveWeek of 2020-10-01: 2 negativeWeek of 2020-11-01: 10 positiveWeek of 2020-12-01: 7 positiveWeek of 2020-12-01: 1 negativeWeek of 2021-01-01: 8 positiveWeek of 2021-02-01: 7 positiveWeek of 2021-03-01: 12 positiveWeek of 2021-03-01: 3 negativeWeek of 2021-04-01: 5 positiveWeek of 2021-04-01: 1 negativeWeek of 2021-05-01: 2 positiveWeek of 2021-05-01: 1 negativeWeek of 2021-06-01: 3 positiveWeek of 2021-07-01: 5 positiveWeek of 2021-07-01: 1 negativeWeek of 2021-08-01: 4 positiveWeek of 2021-09-01: 2 positiveWeek of 2021-10-01: 12 positiveWeek of 2021-10-01: 3 negativeWeek of 2021-11-01: 2 positiveWeek of 2021-12-01: 8 positiveWeek of 2022-01-01: 4 positiveWeek of 2022-01-01: 1 negativeWeek of 2022-02-01: 2 positiveWeek of 2022-03-01: 2 positiveWeek of 2022-04-01: 2 positiveWeek of 2022-04-01: 1 negativeWeek of 2022-05-01: 2 positiveWeek of 2022-05-01: 1 negativeWeek of 2022-06-01: 2 positiveWeek of 2022-06-01: 1 negativeWeek of 2022-07-01: 1 positiveWeek of 2022-08-01: 1 positiveWeek of 2022-08-01: 22 negativeWeek of 2022-09-01: 8 positiveWeek of 2022-09-01: 5 negativeWeek of 2022-10-01: 5 positiveWeek of 2022-10-01: 1 negativeWeek of 2022-11-01: 3 positiveWeek of 2022-12-01: 5 positiveWeek of 2022-12-01: 1 negativeWeek of 2023-01-01: 7 positiveWeek of 2023-01-01: 1 negativeWeek of 2023-02-01: 3 positiveWeek of 2023-02-01: 1 negativeWeek of 2023-03-01: 2 positiveWeek of 2023-03-01: 1 negativeWeek of 2023-04-01: 3 positiveWeek of 2023-04-01: 2 negativeWeek of 2023-05-01: 4 positiveWeek of 2023-06-01: 2 positiveWeek of 2023-06-01: 2 negativeWeek of 2023-08-01: 2 positiveWeek of 2023-08-01: 2 negativeWeek of 2023-09-01: 2 positiveWeek of 2023-09-01: 1 negativeWeek of 2023-10-01: 2 positiveWeek of 2023-10-01: 2 negativeWeek of 2023-11-01: 3 positiveWeek of 2023-12-01: 1 positiveWeek of 2024-01-01: 2 positiveWeek of 2024-02-01: 3 positiveWeek of 2024-03-01: 1 positiveWeek of 2024-04-01: 1 negativeWeek of 2024-06-01: 1 positiveWeek of 2024-06-01: 1 negativeWeek of 2024-07-01: 1 positiveWeek of 2024-07-01: 1 negativeWeek of 2024-08-01: 2 positiveWeek of 2024-09-01: 1 positiveWeek of 2024-09-01: 2 negativeWeek of 2024-10-01: 1 positiveWeek of 2024-10-01: 2 negativeWeek of 2024-11-01: 1 positiveWeek of 2024-11-01: 2 negativeWeek of 2025-01-01: 3 positiveWeek of 2025-01-01: 4 negativeWeek of 2025-02-01: 1 negativeWeek of 2025-05-01: 1 positiveWeek of 2025-06-01: 2 positiveWeek of 2025-06-01: 3 negativeWeek of 2025-07-01: 2 positiveWeek of 2025-07-01: 2 negativeWeek of 2025-08-01: 2 positiveWeek of 2025-08-01: 1 negativeWeek of 2025-09-01: 2 positiveWeek of 2025-09-01: 1 negativeWeek of 2025-10-01: 1 positiveWeek of 2025-11-01: 3 positiveWeek of 2025-11-01: 1 negativeWeek of 2025-12-01: 6 negativeWeek of 2026-01-01: 3 positiveWeek of 2026-01-01: 11 negativeWeek of 2026-02-01: 2 positiveWeek of 2026-02-01: 2 negativeWeek of 2026-03-01: 3 positiveWeek of 2026-04-01: 1 positiveWeek of 2026-04-01: 1 negativeWeek of 2026-05-01: 2 positiveWeek of 2026-05-01: 2 negativeWeek of 2026-06-01: 2 positiveWeek of 2026-06-01: 2 negativeWeek of 2026-07-01: 3 positiveWeek of 2026-07-01: 3 negativeWeek of 2026-08-01: 2 positive
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

2102026-09-15 00:00 — 13 players2026-09-16 09:00 — 1 players2026-09-17 16:00 — 1 players2026-09-19 00:00 — 3 players2026-09-20 07:00 — 0 players2026-09-21 15:00 — 2 players2026-09-22 22:00 — 0 players2026-09-24 06:00 — 8 players2026-09-25 13:00 — 1 players2026-09-26 21:00 — 10 players2026-09-28 04:00 — 5 players2026-09-29 12:00 — 1 players2026-09-30 19:00 — 8 players2026-10-02 03:00 — 7 players2026-10-03 10:00 — 9 players2026-10-04 19:00 — 11 players2026-10-06 02:00 — 1 players2026-10-07 10:00 — 0 players2026-10-08 17:00 — 0 players2026-10-10 01:00 — 13 players2026-10-11 08:00 — 2 players2026-10-12 16:00 — 1 players2026-10-13 23:00 — 0 players2026-10-14 15:00 — 1 players
Concurrent players, hourly average, last 30 days (census samples).
962Jan 2017Aug 2026Jan 2017 — avg 10 · peak 47Apr 2017 — avg 4 · peak 26Jul 2017 — avg 6 · peak 31Oct 2017 — avg 10 · peak 121Jan 2018 — avg 9 · peak 46Apr 2018 — avg 6 · peak 40Jul 2018 — avg 3 · peak 22Oct 2018 — avg 9 · peak 49Jan 2019 — avg 10 · peak 65Apr 2019 — avg 9 · peak 52Jul 2019 — avg 5 · peak 22Oct 2019 — avg 8 · peak 58Jan 2020 — avg 8 · peak 48Apr 2020 — avg 67 · peak 332Jul 2020 — avg 25 · peak 106Oct 2020 — avg 28 · peak 174Jan 2021 — avg 40 · peak 208Apr 2021 — avg 24 · peak 113Jul 2021 — avg 14 · peak 62Oct 2021 — avg 20 · peak 93Jan 2022 — avg 21 · peak 86Apr 2022 — avg 10 · peak 49Jul 2022 — avg 9 · peak 43Oct 2022 — avg 12 · peak 65Jan 2023 — avg 13 · peak 75Apr 2023 — avg 7 · peak 53Jul 2023 — avg 6 · peak 43Oct 2023 — avg 5 · peak 33Jan 2024 — avg 8 · peak 50Apr 2024 — avg 4 · peak 26Jul 2024 — avg 4 · peak 24Oct 2024 — avg 4 · peak 31Jan 2025 — avg 4 · peak 22Apr 2025 — avg 3 · peak 17Jul 2025 — avg 4 · peak 22Oct 2025 — avg 5 · peak 26Jan 2026 — avg 11 · peak 62Apr 2026 — avg 5 · peak 22Jul 2026 — avg 5 · peak 21Aug 2026 — avg 4 · peak 30
Monthly average players (source: steamcharts.com) — history via steamcharts.com; live census sampling since Aug 2026.

Price history

$9.99$1.742017-01-122025-09-132017-01-12 — best price $9.992018-04-20 — best price $9.992018-08-31 — best price $6.992019-01-02 — best price $9.992019-03-25 — best price $6.992020-02-07 — best price $6.992020-05-12 — best price $6.292020-06-06 — best price $6.992020-06-25 — best price $6.992020-07-13 — best price $6.992020-07-31 — best price $6.992020-08-18 — best price $6.992020-09-06 — best price $6.992020-09-24 — best price $6.292020-10-15 — best price $6.992020-11-09 — best price $6.992020-12-01 — best price $6.992020-12-21 — best price $5.842021-01-18 — best price $6.992021-02-05 — best price $6.992021-02-24 — best price $5.842021-03-14 — best price $5.842021-04-10 — best price $6.992021-04-28 — best price $6.992021-05-16 — best price $6.992021-06-03 — best price $6.992021-10-22 — best price $5.502022-05-15 — best price $6.992022-10-06 — best price $6.992022-11-28 — best price $9.992023-02-21 — best price $5.502023-10-02 — best price $6.292025-07-18 — best price $5.842025-09-13 — best price $5.84
Lowest recorded price across tracked stores, per day (census snapshots).

Details

WindowsSingle-playerMulti-playerPvPOnline PvPCo-opOnline Co-opCross-Platform MultiplayerIn-App PurchasesFamily Sharing2 DLC

6 supported languages: English, French, Italian, German, Spanish - Spain, Russian

Post-launch support: 2 DLC released, first 2017-01-13, latest 2017-11-21 (Steam store data)

Player tags

Co-opMysteryStrategyTabletopBoard GameMultiplayerOnline Co-OpSingleplayer

Census log

Computed from census-recorded observations only — dates are observation dates.

Players also track

Supreme Ruler UltimatePlanetbaseLife is Feudal: Forest VillageAnother Brick in The MallMashinkyStartup CompanyAncient CitiesRise of Industry

Similarity via IGDB.

Official site ↗Wikipedia ↗