
Trait tiers
← RobustHerculean · step +3End of chain
Effects
Modifier values for patch 1.20.1.2 are listed below. Check the in-game tooltip for availability and current setup.
| Modifier | Value |
|---|---|
| Prowess | +8 |
| Health | +1 |
| Attraction Opinion | +15 |
In play
Herculean: prowess rises by 8, health rises by 1, and attraction opinion rises by 15. Herculean is the top good physique trait. Prowess, health, and attraction are why knights and heirs are bred for it. Weak, Spindly, Hale, and Robust sit on the other side of this trait.
How to get Herculean
- Gain: Congenital and decided at birth: a child inherits Herculean outright at a base 80% if both parents have it, 50% if one has it and the other carries it hidden, 25% if only one parent has it, and 2% to 10% if the parents only carry it. About 0.15% of children who inherit nothing from the physique line are born Herculean at random, and a child who inherits Robust from both parents gets a base 50% roll to be strengthened to Herculean.
- Remove or lose: Permanent for practical purposes: no treatment or decision removes it, and the character can still pass the trait on to children.
When the outright roll fails, the child can still inherit Herculean hidden (inactive) and pass it to later generations, so carriers matter when choosing spouses.
To breed for Herculean, marry Herculean to Herculean. If the 80% roll fails, the child still almost always carries Herculean hidden and can pass it on. A Robust spouse counts as carrying Herculean, so pairing Herculean with Robust gives the 50% carrier odds instead of the 25% you get with a spouse who has nothing.
Blood legacies improve the odds: Noble Veins raises the chance of good random and hidden inheritance, and Convergent Blood adds 30% to the chance of strengthening a trait to the next tier. Faiths with the Divine Marriage tenet add smaller bonuses to the same rolls, for bad genetic traits as well as good ones.
Sources: CK3 Database: Herculean (physique_good_3) · CK3 Database: dynasty legacies
Questions about Herculean
How do you get the Herculean trait in CK3?
Herculean is congenital. Two Herculean parents give each child a base 80% chance, two Robust parents can produce it through a 50% strengthen roll, and about 0.15% of children with no inherited physique trait are born Herculean at random.