gameindustrytrends

itch.ioRank 23012026-10-18

The Spellbook18+

by Naughty Games

Open on itch.io

Velocity

-0.010

The Spellbook Velocity, last 14 days: falling across 14 days, 0.00 to -0.01 (low -0.01, high 0.01).

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 2026-10-18. 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 The Spellbook, 30 daysLead and lag over 30 days, 2026-09-19 to 2026-10-18, each series scaled to its own change so the timing can be compared. Not enough of the ladder to compare. Ratings: 102 to 103, up 1, most of that change came late in the window.100%50%0%Sep 19Oct 18Ratings

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 19 to Oct 18

  • Ratings — people finished and cared102103+1
  • 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 19102
Sep 20102
Sep 21102
Sep 22102
Sep 23102
Sep 24102
Sep 25102
Sep 26102
Sep 27102
Sep 28102
Sep 29102
Sep 30102
Oct 1102
Oct 2102
Oct 3102
Oct 4102
Oct 5102
Oct 6102
Oct 7103
Oct 8103
Oct 9103
Oct 10103
Oct 11103
Oct 12103
Oct 13103
Oct 14103
Oct 15103
Oct 16103
Oct 17103
Oct 18103
What the platform publishes

Counters

Read 2026-10-18
CounterNow7d30d
Ratings conversion1030+1

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

On 3 tag charts
ChartNow7d30dHistory
Top rated · #eroge579-10-16Position on itch.io's Top rated · #eroge chart across 42 readings: slipping, #550 to #579 (best #550, worst #579).
Top rated · #erotic1,755-39-48Position on itch.io's Top rated · #erotic chart across 41 readings: slipping, #1686 to #1755 (best #1686, worst #1758).
Top rated · #adult2,559-62-85Position on itch.io's Top rated · #adult chart across 60 readings: slipping, #2371 to #2559 (best #2371, worst #2559).
Everything else we hold

Activity and where to go next

First seen by us
2026-08-20
Price
free
Average rating
4.03 / 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.