
Effect · every source
How to increase Supply Duration in CK3
18 sources raise Supply Duration and 0 lower it in the game files of patch 1.20.0.3.
supply_durationThe biggest boosts
+100%Horse LordsCultural tradition · Characters of this culture- +100%Veteran ExplorersDynasty legacy · Adventure legacy · Members of the dynasty
- +100%NomadicGovernment · Rulers with this government
What raises Supply Duration (18)
Traits (4)

logistician· game/common/traits/00_traits.txt


Lifestyle perks (1)
Well Prepared+25%
well_prepared_perk· game/common/lifestyle_perks/00_wanderer_2_wayfarer_tree_perks.txt
Cultural traditions (1)

Horse Lords+100%
Characters of this culture
tradition_horse_lords· game/common/culture/traditions/00_regional_traditions.txt
Holy sites (10)
Perm+25%
Perm · Followers, while the faith holds it
perm· game/common/religion/faith_types/00_faith_types.txtIban+25%
Iban · Followers, while the faith holds it
iban· game/common/religion/faith_types/00_faith_types.txtWadan+25%
Wadan · Followers, while the faith holds it
wadan· game/common/religion/faith_types/00_faith_types.txtKönugarðr+20%
Kyiv · Followers, while the faith holds it
konugardr· game/common/religion/faith_types/00_faith_types.txtNutapkauspe+20%
Menas · Followers, while the faith holds it
nutapkauspe· game/common/religion/faith_types/00_faith_types.txtBadd+20%
Tabriz · Followers, while the faith holds it
badd· game/common/religion/faith_types/00_faith_types.txtSantiago+10%
Santiago · Followers, while the faith holds it
santiago· game/common/religion/faith_types/00_faith_types.txtJinglong+10%
Chiang Rung · Followers, while the faith holds it
jinglong· game/common/religion/faith_types/00_faith_types.txtAlxa+10%
Alxa · Followers, while the faith holds it
alxa· game/common/religion/faith_types/00_faith_types.txtYam Alin+10%
Yam Alin · Followers, while the faith holds it
yam_alin· game/common/religion/faith_types/00_faith_types.txt
Dynasty legacies (1)
Veteran Explorers+100%
Adventure legacy · Members of the dynasty
fp1_adventure_legacy_4· game/common/dynasty_perks/01_fp1_dynasty_perks.txt
Governments (1)
Nomadic+100%
Rulers with this government
nomad_government· game/common/governments/00_government_types.txt
Source: game/common/culture/traditions/00_regional_traditions.txt, game/common/dynasty_perks/01_fp1_dynasty_perks.txt, game/common/governments/00_government_types.txt, game/common/lifestyle_perks/00_wanderer_2_wayfarer_tree_perks.txt, game/common/religion/faith_types/00_faith_types.txt, 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.