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Black Book cover art

Mobile game · 2021

Black Book

A fusion of card-based RPGs and Adventure games, “Black Book” is a haunting tale of a young sorceress, who gave her life to serve the dark forces. Dive into the cold, yet alluring world of folk tales - and uncover the secrets that hide in the darkness.

Estimated daily players

~1800.0% no change vs one week ago

Range 172.7K

Estimated total players

~3,7000.0% no change vs one week ago

Range 1.7K18K

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

Aug 10, 2021iOSUSK 12CLASS IND 10ACB PGPEGI TESRB 18GRAC 12

What the estimate rests on

  • Steam 49%
  • App Store 38%
  • Reddit 13%

Player estimates

Nobody publishes how many people play Black Book, so these figures are modelled from the public counts on App Store, Steam, Reddit, Twitch. 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

~180

0.0% no change vs one week ago

Range 172.7K

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

Estimated total players

~3,700

0.0% no change vs one week ago

Range 1.7K18K

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 Black Book per calendar month, newest first
MonthEstimated total playersChange
August 2026~6,600

Community activity

Last checked Aug 9, 2026

Store signals

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

App Store ratings

35

0.0% no change vs Aug 8, 2026
Average rating
3.7

Ratings left on the iOS listing, read from Apple’s public lookup endpoint.

Steam players in game

28

Reviews
6,694

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

Only the games with a PC port appear here, but where Steam does report it is a real concurrent-player count rather than a proxy for one.

Community signals

How many people gather around Black Book outside the stores — members, subscribers and live viewers.

Reddit members

254

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

Subscribers to the game’s subreddit.

Twitch viewers

0

Live channels
0

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

People watching this game on Twitch right now, summed across every live channel in its category.

Not tracked for Black Book: Google Play, Discord, YouTube. 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.

Storyline

A fusion of card-based RPGs and Adventure games, “Black Book” is a haunting tale of a young sorceress, who gave her life to serve the dark forces. Dive into the cold, yet alluring world of Russian folktales – and uncover the secrets that hide in the darkness. A young girl named Vasilisa, destined to become a witch, decides to throw her fate away and marry her beloved – but that dream is shattered when her betrothed dies under mysterious circumstances. Aching for her lost love, Vasilisa seeks out Black Book – a demonic artifact, said to be powerful enough to grant any wish to the one who uncovers all 7 of its seals. Join Vasilisa in her adventures across Russian countryside, as she solves the woes of common folk by confronting demons and performing exorcisms.

Trailers

Gameplay Video

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Gameplay Trailer

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Screenshots

Frequently asked questions

How many people play Black Book?

We estimate that about 3,700 people have played Black Book — plausibly between 1.7K and 18K. Around 180 of them play on a given day, in a range of 17 and 2.7K. Both figures are modelled from public counts on App Store, Steam, Reddit and Twitch rather than published by the developer, so read them as a scale rather than as a headcount.

Is Black Book still active?

Yes. Black Book 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 Black Book 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.

How big is the Black Book Reddit community?

Black Book has 254 members on Reddit, as of August 9, 2026.

When was Black Book released?

Black Book was released on August 10, 2021 for iOS.

What platforms is Black Book available on?

Black Book is available on iOS. You can get it from App Store (iPhone) and App Store (iPad).

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