Tools & calculators
Calculators that use the game's own rules and numbers from patch 1.20.0.3. Each one prints the formula it uses.
Ruler designer points calculator
Age, skills and traits with their customization point costs, against the 400-point achievements limit. Share a build by link.
Perk planner
Pick lifestyle perks across all 18 trees; see the perk points, experience and years they take, with or without an education bonus.
Men-at-arms counters calculator
Two armies of regiments: which get countered, by how much, and the damage left after counters.