Unofficial fan reference · game files of Crusader Kings III 1.20.0.3 “Crozier”
CK3 Database

Ruler designer points calculator

Build a ruler the way the game's ruler designer does and see the customization points it costs. Above 400 points the game turns achievements off. Costs are read from the game files of patch 1.20.0.3; the link in the address bar keeps your build.

Age and skills

  • Diplomacy512
  • Martial512
  • Stewardship512
  • Intrigue512
  • Learning512
  • Prowess56

Traits

How the points add up

Skills cost by their base value (what you buy, before traits), from the game's cost formulas in common/script_values/02_ruler_designer_values.txt: the higher the skill, the more each point costs — a base value of 10 costs 38 points, 15 costs 85. Prowess is cheaper (20 at 10).

Age: the age times a multiplier that falls as the character gets older (NRulerDesigner in common/defines/00_defines.txt). Young adults cost the most; from 70 age is free.

Traits each have a fixed cost (ruler_designer_cost); negative ones give points back. Picking a stronger level of a trait replaces the weaker one, opposites can't be combined, and only one education can be chosen. See every trait's effects on the traits pages.