gameindustrytrends

itch.ioRank 12652026-10-17

Black Book: Prologue

by hypetrain

Open on itch.io

Velocity

0.000

Black Book: Prologue Velocity, last 14 days: flat across 14 days, 0.00 to 0.00 (low 0.00, high 0.00).

Confidence 20%

Confidence is the share of Velocity’s four components that could be measured for this game, scaled down again when there is less than a fortnight to measure over. Here, ratings had a measurable acceleration on 2026-10-17. Topic views and comments did not. We also have itch.io chart positions for it, which is the fourth component. It was observed on 14 of the last 14 days. How this is computed.

Which counter moved first

Lead and lag

30 days

Not enough of the ladder to compare.

Only ratings could be plotted, so there is no second counter to compare the timing against.

Lead and lag for Black Book: Prologue, 30 daysLead and lag over 30 days, 2026-09-18 to 2026-10-17, each series scaled to its own change so the timing can be compared. Not enough of the ladder to compare. Ratings: 36 throughout, no change at all.100%50%0%Sep 18Oct 17Ratings

Each line is scaled to its own change across these 30 days, so counters that differ by orders of magnitude can be compared by shape. The vertical gap is what matters: a line higher on the left took its change earlier. The real counts are in the legend, and the day-by-day numbers are below.

Series — over Sep 18 to Oct 17

  • Ratings — people finished and cared36360
  • Topic views are not recorded for this game, so that rung is unmeasured — not zero.
  • Comments are not recorded for this game, so that rung is unmeasured — not zero.
The numbers behind the chart

The counter as we recorded it that day, and beside it the share of the window’s change it had reached — the value the chart plots.

DayRatings
Sep 1836
Sep 1936
Sep 2036
Sep 2136
Sep 2236
Sep 2336
Sep 2436
Sep 2536
Sep 2636
Sep 2736
Sep 2836
Sep 2936
Sep 3036
Oct 136
Oct 236
Oct 336
Oct 436
Oct 536
Oct 636
Oct 736
Oct 836
Oct 936
Oct 1036
Oct 1136
Oct 1236
Oct 1336
Oct 1436
Oct 1536
Oct 1636
Oct 1736
What the platform publishes

Counters

Read 2026-10-17
CounterNow7d30d
Ratings conversion3600

A blank change is not a zero: the scoring pass refuses a window whose nearest observation is too stale to compare, rather than differencing two points that are not seven days apart.

Not our number

On itch.io's own charts

Categories

ChartNow7d30dHistory
Top rated · Rpg809+11-14Position on itch.io's Top rated · Rpg chart across 50 readings: slipping, #787 to #809 (best #785, worst #821).
On 8 tag charts
ChartNow7d30dHistory
Top rated · #dark4860-12Position on itch.io's Top rated · #dark chart across 41 readings: slipping, #465 to #486 (best #465, worst #500).
Top rated · #exploration505-5-9Position on itch.io's Top rated · #exploration chart across 40 readings: slipping, #489 to #505 (best #489, worst #505).
Top rated · #3d899-5-22Position on itch.io's Top rated · #3d chart across 59 readings: slipping, #870 to #899 (best #869, worst #906).
Top rated · #fantasy906-4-16Position on itch.io's Top rated · #fantasy chart across 40 readings: slipping, #883 to #906 (best #883, worst #914).
Top rated · #atmospheric1,328-11-37Position on itch.io's Top rated · #atmospheric chart across 57 readings: slipping, #1284 to #1328 (best #1284, worst #1348).
Top rated · #horror1,978-11Position on itch.io's Top rated · #horror chart across 29 readings: slipping, #1928 to #1978 (best #1928, worst #2034).
Top rated · #short2,119-1Position on itch.io's Top rated · #short chart across 14 readings: slipping, #2079 to #2119 (best #2079, worst #2119).
Top rated · #singleplayer2,378Position on itch.io's Top rated · #singleplayer chart across 2 readings: slipping, #2376 to #2378 (best #2376, worst #2378).
Everything else we hold

Activity and where to go next

First seen by us
2026-08-20
Price
free
Average rating
4.67 / 5

No devlog has been posted since we started watching on 2026-08-20. itch.io publishes only the most recent devlog date, so anything posted before then leaves no trace here.

Go to the source

We hold counters and metadata only. Nothing on the game’s own page — its description, its screenshots, its build — is republished here, and everything worth reading about it is behind those links.