The Game Census
Mansions of Madness cover art

Mansions of Madness

Fantasy Flight Games · 2016-08-01

Steam

AdventureStrategy

Modes: Single player, Multiplayer, Co-operative

Releases: Aug 01, 2016 (Mac), Aug 01, 2016 (PC (Microsoft Windows))

A companion app for the Mansions of Madness Second Edition board game from Fantasy Flight Games. Mansions of Madness is a cooperative game of mystery and investigation inspired by the writings of H. P. Lovecraft. During each game, one to five players explore a location to unravel a mystery.

Mansions of Madness is an Adventure and Strategy game released in 2016, free-to-play, with an estimated 200,000 to 500,000 owners and a Very Positive review sentiment (92% of 1301 reviews).

10
playing now
92%
positive of 1.3k reviews
Very Positive
steam's rating (official)
200,000–500,000
owners (SteamSpy est.)
platinum
deck/linux tier (ProtonDB)
Verified
Steam Deck (Valve)
SteamOS: Playable
Free
steam price (US)

10 players in-game as of 2026-10-14 13:00 UTC (census sample)

That the influence of the old house was unwholesome, he could not deny; but traces of his early morbid interest still held him there. He argued that the fever alone was responsible for his nightly phantasies, and that when the touch abated he would be free from the monstrous visions. Those visions, however, were of abhorrent vividness and convincingness, and whenever he awaked he retained a vague sense of having undergone much more than he remembered. –H.P. Lovecraft, The Dreams in the Witch House(Storyline via IGDB)

Health check

Quietly active
  • · 10 players in-game at the last census sample.
  • · 50 reviews in the last 8 weeks (~6/week).
  • · Review velocity down 47% vs the prior 8 weeks.
  • · Top 12% of 28,796 Adventure games in the census by review count.

Health tier since 2026-08-31

Review momentum

PositiveNegative
303020182026Week of 2018-01-01: 7 positiveWeek of 2018-01-01: 4 negativeWeek of 2018-02-01: 11 positiveWeek of 2018-03-01: 2 positiveWeek of 2018-03-01: 2 negativeWeek of 2018-04-01: 2 positiveWeek of 2018-04-01: 1 negativeWeek of 2018-05-01: 5 positiveWeek of 2018-05-01: 2 negativeWeek of 2018-06-01: 2 positiveWeek of 2018-07-01: 2 positiveWeek of 2018-07-01: 1 negativeWeek of 2018-08-01: 4 positiveWeek of 2018-08-01: 1 negativeWeek of 2018-09-01: 4 positiveWeek of 2018-10-01: 8 positiveWeek of 2018-10-01: 1 negativeWeek of 2018-11-01: 22 positiveWeek of 2018-12-01: 7 positiveWeek of 2019-01-01: 6 positiveWeek of 2019-02-01: 3 positiveWeek of 2019-03-01: 6 positiveWeek of 2019-03-01: 3 negativeWeek of 2019-04-01: 4 positiveWeek of 2019-04-01: 1 negativeWeek of 2019-05-01: 1 negativeWeek of 2019-06-01: 15 positiveWeek of 2019-06-01: 2 negativeWeek of 2019-07-01: 26 positiveWeek of 2019-07-01: 2 negativeWeek of 2019-08-01: 3 positiveWeek of 2019-08-01: 1 negativeWeek of 2019-09-01: 4 positiveWeek of 2019-09-01: 2 negativeWeek of 2019-10-01: 6 positiveWeek of 2019-11-01: 30 positiveWeek of 2019-12-01: 27 positiveWeek of 2020-01-01: 22 positiveWeek of 2020-01-01: 1 negativeWeek of 2020-02-01: 16 positiveWeek of 2020-03-01: 21 positiveWeek of 2020-04-01: 22 positiveWeek of 2020-04-01: 2 negativeWeek of 2020-05-01: 20 positiveWeek of 2020-06-01: 22 positiveWeek of 2020-06-01: 4 negativeWeek of 2020-07-01: 16 positiveWeek of 2020-07-01: 2 negativeWeek of 2020-08-01: 17 positiveWeek of 2020-09-01: 9 positiveWeek of 2020-09-01: 2 negativeWeek of 2020-10-01: 22 positiveWeek of 2020-11-01: 20 positiveWeek of 2020-11-01: 1 negativeWeek of 2020-12-01: 15 positiveWeek of 2020-12-01: 1 negativeWeek of 2021-01-01: 20 positiveWeek of 2021-02-01: 15 positiveWeek of 2021-02-01: 2 negativeWeek of 2021-03-01: 14 positiveWeek of 2021-03-01: 1 negativeWeek of 2021-04-01: 19 positiveWeek of 2021-05-01: 7 positiveWeek of 2021-06-01: 11 positiveWeek of 2021-06-01: 1 negativeWeek of 2021-07-01: 9 positiveWeek of 2021-07-01: 2 negativeWeek of 2021-08-01: 8 positiveWeek of 2021-08-01: 1 negativeWeek of 2021-09-01: 9 positiveWeek of 2021-09-01: 1 negativeWeek of 2021-10-01: 10 positiveWeek of 2021-11-01: 14 positiveWeek of 2021-11-01: 2 negativeWeek of 2021-12-01: 11 positiveWeek of 2021-12-01: 2 negativeWeek of 2022-01-01: 18 positiveWeek of 2022-01-01: 1 negativeWeek of 2022-02-01: 6 positiveWeek of 2022-02-01: 1 negativeWeek of 2022-03-01: 11 positiveWeek of 2022-03-01: 1 negativeWeek of 2022-04-01: 6 positiveWeek of 2022-05-01: 5 positiveWeek of 2022-05-01: 1 negativeWeek of 2022-06-01: 8 positiveWeek of 2022-07-01: 8 positiveWeek of 2022-08-01: 7 positiveWeek of 2022-09-01: 9 positiveWeek of 2022-09-01: 1 negativeWeek of 2022-10-01: 11 positiveWeek of 2022-10-01: 2 negativeWeek of 2022-11-01: 14 positiveWeek of 2022-11-01: 1 negativeWeek of 2022-12-01: 12 positiveWeek of 2022-12-01: 1 negativeWeek of 2023-01-01: 16 positiveWeek of 2023-02-01: 8 positiveWeek of 2023-03-01: 9 positiveWeek of 2023-03-01: 2 negativeWeek of 2023-04-01: 7 positiveWeek of 2023-04-01: 1 negativeWeek of 2023-05-01: 8 positiveWeek of 2023-06-01: 12 positiveWeek of 2023-07-01: 7 positiveWeek of 2023-08-01: 11 positiveWeek of 2023-08-01: 2 negativeWeek of 2023-09-01: 8 positiveWeek of 2023-10-01: 7 positiveWeek of 2023-11-01: 12 positiveWeek of 2023-12-01: 8 positiveWeek of 2024-01-01: 7 positiveWeek of 2024-02-01: 7 positiveWeek of 2024-03-01: 8 positiveWeek of 2024-04-01: 12 positiveWeek of 2024-05-01: 6 positiveWeek of 2024-05-01: 1 negativeWeek of 2024-06-01: 6 positiveWeek of 2024-06-01: 3 negativeWeek of 2024-07-01: 16 positiveWeek of 2024-07-01: 1 negativeWeek of 2024-08-01: 17 positiveWeek of 2024-08-01: 1 negativeWeek of 2024-09-01: 15 positiveWeek of 2024-10-01: 12 positiveWeek of 2024-10-01: 1 negativeWeek of 2024-11-01: 8 positiveWeek of 2024-11-01: 1 negativeWeek of 2024-12-01: 7 positiveWeek of 2025-01-01: 6 positiveWeek of 2025-02-01: 7 positiveWeek of 2025-03-01: 9 positiveWeek of 2025-03-01: 1 negativeWeek of 2025-04-01: 14 positiveWeek of 2025-05-01: 17 positiveWeek of 2025-05-01: 2 negativeWeek of 2025-06-01: 7 positiveWeek of 2025-07-01: 8 positiveWeek of 2025-08-01: 7 positiveWeek of 2025-09-01: 8 positiveWeek of 2025-09-01: 2 negativeWeek of 2025-10-01: 9 positiveWeek of 2025-11-01: 18 positiveWeek of 2025-11-01: 2 negativeWeek of 2025-12-01: 9 positiveWeek of 2026-01-01: 8 positiveWeek of 2026-01-01: 1 negativeWeek of 2026-02-01: 10 positiveWeek of 2026-02-01: 1 negativeWeek of 2026-03-01: 2 positiveWeek of 2026-03-01: 1 negativeWeek of 2026-04-01: 3 positiveWeek of 2026-04-01: 1 negativeWeek of 2026-05-01: 5 positiveWeek of 2026-06-01: 4 positiveWeek of 2026-07-01: 4 positiveWeek of 2026-07-01: 1 negativeWeek of 2026-08-01: 4 positiveWeek of 2026-08-01: 2 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

10152026-09-15 14:00 — 21 players2026-09-16 23:00 — 22 players2026-09-18 06:00 — 10 players2026-09-19 14:00 — 84 players2026-09-20 21:00 — 42 players2026-09-22 05:00 — 7 players2026-09-23 12:00 — 7 players2026-09-24 20:00 — 24 players2026-09-26 03:00 — 24 players2026-09-27 11:00 — 38 players2026-09-28 18:00 — 22 players2026-09-30 02:00 — 9 players2026-10-01 09:00 — 12 players2026-10-02 17:00 — 38 players2026-10-04 01:00 — 44 players2026-10-05 09:00 — 13 players2026-10-06 16:00 — 20 players2026-10-08 00:00 — 5 players2026-10-09 07:00 — 11 players2026-10-10 15:00 — 87 players2026-10-11 22:00 — 34 players2026-10-13 06:00 — 5 players2026-10-14 13:00 — 10 players
Concurrent players, hourly average, last 30 days (census samples).
9419Aug 2016Aug 2026Aug 2016 — avg 20 · peak 69Dec 2016 — avg 29 · peak 171Apr 2017 — avg 29 · peak 125Aug 2017 — avg 32 · peak 134Dec 2017 — avg 51 · peak 261Apr 2018 — avg 38 · peak 184Aug 2018 — avg 45 · peak 174Dec 2018 — avg 64 · peak 310Apr 2019 — avg 41 · peak 219Aug 2019 — avg 56 · peak 198Dec 2019 — avg 67 · peak 393Apr 2020 — avg 74 · peak 282Aug 2020 — avg 66 · peak 263Dec 2020 — avg 76 · peak 539Apr 2021 — avg 59 · peak 284Aug 2021 — avg 54 · peak 207Dec 2021 — avg 58 · peak 403Apr 2022 — avg 49 · peak 256Aug 2022 — avg 50 · peak 201Dec 2022 — avg 57 · peak 389Apr 2023 — avg 48 · peak 214Aug 2023 — avg 42 · peak 184Dec 2023 — avg 50 · peak 406Apr 2024 — avg 39 · peak 192Aug 2024 — avg 41 · peak 166Dec 2024 — avg 47 · peak 313Apr 2025 — avg 34 · peak 167Aug 2025 — avg 38 · peak 160Dec 2025 — avg 40 · peak 258Apr 2026 — avg 30 · peak 131Aug 2026 — avg 31 · peak 135
Monthly average players (source: steamcharts.com) — history via steamcharts.com; live census sampling since Aug 2026.

Details

WindowsmacOSSingle-playerMulti-playerCo-opShared/Split ScreenRemote Play TogetherFamily Sharing4 DLC

13 supported languages: English, German, Spanish - Spain, French, Italian, Japanese, Polish, Portuguese - Brazil, Czech, Korean, Russian, Simplified Chinese…

Post-launch support: 5 DLC released, first 2016-12-19, latest 2025-05-07 (Steam store data)

Player tags

Co-opHorrorStrategyTabletopAdventureCard GameBoard GameMultiplayerFree to PlayLovecraftian

Census log

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

Recent updates

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Similarity via IGDB.

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