Mobile game · 2017

Mysterium

The official adaptation of the famous board game Mysterium! 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. Play as a medium or as the ghost who haunts the halls of the Warwick Manor as he searches for memories surrounding his suspicious death. The ghost's communication with the psychics is limited to visions and dreams represented in the game by beautifully illustrated cards. Cooperate to solve the murder mystery by reading into the ghost’s visions to gather clues in this atmospheric and immersive game.

Estimated daily players

~1,0000.0%

Range 100–6.1K

Estimated total players

~20,0000.0%

Range 10K–40K

See what's trending

Estimates, not counts — nobody publishes real player numbers for mobile games, so these are modelled from public signals. How we work them out

Jan 12, 2017Android iOS

Card & Board Game Indie Simulator Strategy Kids Mystery

Get the game

Google Play App Store (iPhone)

What the estimate rests on

Google Play 45%
Steam 31%
App Store 24%

Player estimates

Nobody publishes how many people play Mysterium, so these figures are modelled from the public counts on Google Play, App Store, Steam. Each count stands in a roughly known ratio to a population — one Play rating per ~45 players, one Steam review per ~35 owners — and the estimates below combine those readings, weighted by how much each source can be trusted to speak for the whole game. Read the range as the answer and the headline as its middle.

Estimated daily players

~1,000

0.0%

Range 100 – 6.1K

Built from the live counts: Steam concurrents, Discord and Reddit members online, Twitch viewers.

Estimated total players

~20,000

0.0%

Range 10K – 40K

Everyone who has ever played, from the cumulative counts: store ratings and installs, Steam reviews, members and subscribers.

Estimated total players over time

2 readings · last 2 days

Estimated daily players over time

from live counts

Average estimated players per month

Mean estimated total players for Mysterium per calendar month, newest first
Month	Estimated total players	Change
August 2026	~25,000	—

Community activity

Last checked Aug 9, 2026

Store signals

How many people have rated, reviewed or installed Mysterium where it is sold.

Google Play ratings

1,257

Average rating: 4.0
Installs: 10K+

First reading taken Aug 9, 2026 — the chart appears once there are two.

App Store ratings

337

0.0%

Average rating: 4.3

Steam players in game

Reviews: 921

First reading taken Aug 9, 2026 — the chart appears once there are two.

Not tracked for Mysterium: Discord, Reddit, YouTube, Twitch. A platform appears here once the game has a link to it — most mobile games have no Steam port or subreddit, so a gap is normal rather than a sign the game is small.

Trailer

Screenshots

Frequently asked questions

How many people play Mysterium?

We estimate that about 20,000 people have played Mysterium — plausibly between 10K and 40K. Around 1,000 of them play on a given day, in a range of 100 and 6.1K. Both figures are modelled from public counts on Google Play, App Store and Steam rather than published by the developer, so read them as a scale rather than as a headcount.

Is Mysterium still active?

Yes. Mysterium is holding steady — it measured within a percent of where it was a week ago. We recheck every source daily, and the charts on this page show each platform's readings over time.

How are the Mysterium player estimates worked out?

Nobody publishes player counts for mobile games, so we infer them. Each public count we can read is converted into a population using a documented ratio — roughly one Google Play rating per 45 people who played, one Steam review per 35 owners, one Discord member per 40 players — and the live counts (Steam concurrents, members online, Twitch viewers) are converted the same way into a daily figure. Those separate estimates are then averaged in proportion to how much each source can be trusted, which is why sources that disagree widen the published range instead of cancelling out. This page is built on 2 readings taken since August 8, 2026.