
Effect · every source
How to reduce Attrition Taken in Hills in CK3
0 sources raise Attrition Taken in Hills and 2 lower it in the game files of patch 1.20.0.3 — for this one, lower is better.
hills_attrition_multThe biggest reductions
-25%BraveTrait · Culture with Highland Warriors or Upland Skirmishing
-10%Fortress BreakerTrait · Culture with Highland Warriors or Upland Skirmishing
What lowers Attrition Taken in Hills (2)
Traits (2)

Brave-25%
Culture with Highland Warriors or Upland Skirmishing
brave· game/common/traits/00_traits.txt
Fortress Breaker-10%
Culture with Highland Warriors or Upland Skirmishing
military_engineer· game/common/traits/00_traits.txt
Source: game/common/traits/00_traits.txt and the English localisation, Crusader Kings III 1.20.0.3. Building chains are shown once, at their strongest level, with the range over their levels. Effects that come only from events or scale with a script value are not listed.