How many people are playing Black Book right now?

Sample too small: no sampled review with a playtime on file, 30 needed before the figures are written. The reviews poller samples each game’s reviews in turn; the funnel job reads them daily.

Finish funnel · achievements by global unlock share

No achievement marks the end

Started

61.7%

unlocked the most common achievement

Finished

no finish match

none of the 50 achievements reads like the end of the game

Everything

2.1%

unlocked the rarest achievement

Achievements

with an unlock share on 7 Sep 2026

Initiationstarted61.7%

Student47.9%

Knower38.4%

Listener33.9%

Aspen Tree32.6%

Healer32.4%

Soldier30.2%

Scientist26.8%

Cow Level24.9%

Card Player23.0%

39 more achievements between

Word Mastereverything2.1%

Global unlock shares from Steam’s own achievement percentages, read on 7 Sep 2026, ordered most common first. The finish rules (beat the game, completed the story, final boss, credits, epilogue and their variants) matched no name or description, so the funnel has no finish step rather than a guessed one. Shares are of players who have the game on their account, as Steam counts them. How this is computed. Data by SteamPeaks.com.

Streamer Effect

Do streams move Black Book?

Every game How this is computedNot sampled

Black Book is not in the Twitch ring: viewers are sampled every 10 minutes for the hundred most played games and every watched game (364 games since 3 Sep 2026), so there is no viewer series to set against its players yet. Watching the game adds it to the ring.

Best Time to Play

When Black Book is busiest

How this is computedHourly sample 2 hours ago

Needs four weeks of hourly samples, 2 on file (62 hourly rows since 5 Sep 2026, 08:00 UTC). The weekly activity job writes the profile once 4 distinct weeks fall inside its 8-week window; the fourth week of samples begins on 21 Sep 2026, so the heatmap can appear with the job’s first run after that.

Lifespan

How Black Book holds its players

Every game How this is computedComputed 3 days ago

Quieter than 62% of games at month 60.

Launch level

608

average players, best of the first three months from Aug 2021

Share now

5.4%

of the launch level, Aug 2026, month 60

Half-life

1 month

first month under half of launch; the launch month holds the launch spike

Standing

38th

percentile among games at month 60

Revivals

no month after the first year above 1.5× the prior six

Share of the launch level by month since launch · games · 13,558 games at launch

Black BookMiddle half of gamesMedian gamesNext 12 months estimateHalf of launch

Monthly averages from the imported archive and SteamPeaks’ own daily rollups after it, Aug 2021 to Aug 2026, each month divided by the launch level (608). The band is the 25th to 75th percentile of games at each month since launch (13,558 games at launch); the half-life is the first month under half, counting from the month the launch level was set. The projection is the cohort’s band for the next twelve months scaled to this game’s share now: what games usually do next, not a forecast of this game, so it is drawn as a band and labelled an estimate. Recomputed weekly, last on 5 Sep 2026. How this is computed. Data by SteamPeaks.com.