
Effect · every source
How to increase Monthly Barter Goods in CK3
3 sources raise Monthly Barter Goods and 0 lower it in the game files of patch 1.20.0.3.
monthly_barter_goods_multThe biggest boosts
+40%Idjang FortsBuilding · Province
+8%WantilanBuilding · Holder
+4%Kora-Kora YardsBuilding · Holder
What raises Monthly Barter Goods (3)
Buildings (3)

Idjang Forts+40%
Province
Levels 1–4: +10% to +40% (4 levels give it)
idjang-forts· game/common/buildings/00_tribal_buildings.txt
Wantilan+8%
Holder
Levels 1–4: +2% to +8% (4 levels give it)
wantilan· game/common/buildings/00_tribal_buildings.txt
Holder
Levels 1–4: +1% to +4% (4 levels give it)
kora-kora-yards· game/common/buildings/00_tribal_buildings.txt
Source: game/common/buildings/00_tribal_buildings.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.