Regional tradition

Yashima

tradition_tgp_mountain_island

The mountains and forests of the many islands of the Japanese archipelago rise and fall across the ocean, their inhabitants well versed in traversing its rugged and diverse landscapes.

Effects

Counties of this culture

Development Growth in Hills+5%
Development Growth in Mountains+20%

Provinces of this culture

Building Construction Cost in Mountains-10%
Holding Construction Cost in Mountains-10%
Building Construction Cost in Forest-10%
Holding Construction Cost in Forest-10%

Other effects

Gain Prestige when completing Buildings in Holdings with either Mountains or Forest Terrain

Cultures that start with it

No culture starts with it in the game files.

Added with a DLC

Yamato (All Under Heaven)

Source: game/common/culture/traditions/tgp_traditions.txt and the English localisation, Crusader Kings III 1.20.0.3.