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From 1,240 UEFN lessons on 17 October to 1,777 on 12 November.

1,777 UEFN lessons

12 November 2026

0
500
1,000
1,500
2,000

What is inside today

1,777 UEFN lessons

107 guides and documents

Build templates
25
Game patterns
24
Reference: devices, Verse, editor
16
Known-problem guides
15
Design guides
9
Workflows and methods
9
Playbooks and working habits
9

7 genre recipes

Every file your Claude can read that is not a lesson, on this day, each counted once by its kind. 12 November 2026.

What the UEFN lessons cover

Art, effects and sound
499
Editor, testing and publishing
487
Devices and gameplay
259
UI and HUD
244
Verse code
135
Game systems: shops, pets, upgrades, saving
103

Activity

Every number here counts commits across the knowledge base and our games.

21,891 commits

12 November 2026

0
5,000
10K
15K
20K
25K

Real islands. Real numbers.

Everything your Claude learns comes from building them and the tools behind them.

Stats from fortnite.gg, November 2, 2026.

Put it to work in your Claude

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How we count

A tool reads the knowledge base's own history and writes these numbers; nobody edits them by hand. These numbers were made on 12 November 2026. The period still running is marked "so far". The game numbers are fortnite.gg's, as shown on November 2, 2026; minutes played is the sum of the islands pictured.

What each number means

UEFN lessons
Lessons at the end of the period: short rules for making games in UEFN, learned from real work, each with the situation it applies to; retired and replaced lessons are not counted. Counted are the lessons your Claude can read with a subscription. Measured since 11 October 2026.
Improved UEFN lessons
Lessons whose rule, example or the situations that bring them up changed during the period (a correction, a sharper rule and a rewording count the same), plus lessons replaced by a newer version. Counted are the lessons your Claude can read with a subscription. Measured since 12 October 2026.
Lessons that carry a test question
Share of lessons that have a test question of their own; each lesson's trigger is checked against it at the end of the period. Measured since 11 October 2026.
Commits
Saved changes across the knowledge base and our games' repositories up to the end of the period; automatic log saves are not counted. Measured since 11 May 2026.
Reviewed changes merged
Changes that passed review and the automatic checks before joining the knowledge base, up to the end of the period. Measured since 11 May 2026.
Lessons by main area
Lessons on this day, each counted once, in its main area: the first area its own tags name. The numbers add up to the lessons that have an area; a lesson whose tags name no area is in none. Counted on 12 November 2026.

Notes on the data

11 November 2026
On 11 November 2026 one review pass corrected many lessons at once, most of them lessons that contradicted each other, so that week's and that month's improved lessons are unusually high.
11 October 2026
UEFN lessons are counted from 11 October 2026, the day each lesson got its own file; every period counts the lessons that today's subscription rules let your Claude read.
4 October 2026
On 4 October 2026 about 180 lessons learned earlier and kept in private notes were moved into the knowledge base at once.
11 May 2026
Guides are counted from 11 May 2026, the first day of the knowledge base.

Every number, by week

UEFN lessons

  • 17 Oct 1,240
  • 24 Oct 1,396
  • 31 Oct 1,628
  • 7 Nov 1,743
  • 14 Nov 1,777 so far

New UEFN lessons

  • 24 Oct 182
  • 31 Oct 233
  • 7 Nov 116
  • 14 Nov 93 so far

Improved UEFN lessons

  • 24 Oct 130
  • 31 Oct 19
  • 7 Nov 30
  • 14 Nov 136 so far

Lessons that carry a test question

  • 17 Oct 100%
  • 24 Oct 100%
  • 31 Oct 100%
  • 7 Nov 100%
  • 14 Nov 100% so far

Commits

  • 16 May 25
  • 23 May 25
  • 30 May 42
  • 6 Jun 43
  • 13 Jun 46
  • 20 Jun 68
  • 27 Jun 100
  • 4 Jul 139
  • 11 Jul 220
  • 18 Jul 245
  • 25 Jul 252
  • 1 Aug 254
  • 8 Aug 312
  • 15 Aug 402
  • 22 Aug 403
  • 29 Aug 459
  • 5 Sep 526
  • 12 Sep 626
  • 19 Sep 681
  • 26 Sep 760
  • 3 Oct 1,157
  • 10 Oct 5,317
  • 17 Oct 10,000
  • 24 Oct 14,456
  • 31 Oct 17,477
  • 7 Nov 20,128
  • 14 Nov 21,891 so far

Commits in the month or week

  • 16 May 25
  • 23 May 0
  • 30 May 17
  • 6 Jun 1
  • 13 Jun 3
  • 20 Jun 22
  • 27 Jun 32
  • 4 Jul 39
  • 11 Jul 81
  • 18 Jul 25
  • 25 Jul 7
  • 1 Aug 2
  • 8 Aug 58
  • 15 Aug 90
  • 22 Aug 1
  • 29 Aug 56
  • 5 Sep 67
  • 12 Sep 100
  • 19 Sep 55
  • 26 Sep 79
  • 3 Oct 397
  • 10 Oct 4,160
  • 17 Oct 4,683
  • 24 Oct 4,456
  • 31 Oct 3,021
  • 7 Nov 2,651
  • 14 Nov 1,763 so far

Reviewed changes merged

  • 16 May 0
  • 23 May 0
  • 30 May 0
  • 6 Jun 0
  • 13 Jun 0
  • 20 Jun 0
  • 27 Jun 0
  • 4 Jul 0
  • 11 Jul 0
  • 18 Jul 0
  • 25 Jul 0
  • 1 Aug 0
  • 8 Aug 0
  • 15 Aug 0
  • 22 Aug 0
  • 29 Aug 0
  • 5 Sep 0
  • 12 Sep 0
  • 19 Sep 0
  • 26 Sep 0
  • 3 Oct 0
  • 10 Oct 112
  • 17 Oct 320
  • 24 Oct 470
  • 31 Oct 505
  • 7 Nov 542
  • 14 Nov 576 so far