Culture
From EU3 Wiki
The concept of culture as implemented in EU3 is a gameplay factor designed to affect expansion. In the game, cultures are divided into groups. Each province has one dominant culture, and each country has one primary culture and possibly one or more accepted cultures.
It is worth noting that culture and culture groups are not tied to language.
Culture groups
As mentioned above, all cultures are grouped into culture groups. As an example, the Scandinavian group consists of Danish, Norwegian and Swedish. As defined in Cultures.txt:
scandinavian = {
swedish
danish
norwegian
}
Primary culture
All countries have one, and only one, primary culture. Provinces with this culture have no tax income penalties from culture. Provinces from another culture within the same group has a 10% tax income penalty.
Accepted culture
If a culture becomes a significant minority within a country, they can gain the status as accepted culture. The criteria for "significant minority" is that it represents 20% or more of the base tax value in all your core provinces (not just the ones you own) and that you own at least one core of that culture. As of v.1.3, a culture loses it's accepted status if it drops below 5%. These percentages can be changed in defines.txt.
Provinces of an accepted culture have, like primary culture provinces, no income penalties from culture. Provinces with a culture that isn't in the primary culture's group or an accepted culture has a 30% tax income penalty.
Culture Change
There are a few ways to change a province culture:
Colonies
If an unclaimed province has natives then they have a particular culture and religion, by sending your colonists you not only gain ownership of the province but change the culture and religion to your own.
If you "gain" a colony of another nation, you can change the culture/religion by sending one of your own colonist, IF he arrives before the colony growing to 900 settlers... in other words if your colonist arrives and the result is still a colony (up to 999 settlers) then you get the culture/religion change.
You can use the Spy action Incite Natives before gaining your enemy's colony in order to reduce the settlers below 900 so after gaining ownership you can convert it to your own culture/religion.
Cities
Once the province grows into a city it won't fall bellow 1000 population no matter what, there is no way to devolve the city into a colony.
Nevertheless if the province has a Pagan Religion sending a missionary will turn it into your own religion AND culture.
For city provinces with non-Pagan religions in "In Nomine" you could use the Religious Rebels to change the province religion into Pagan and then use missionary conversion.
I'm not sure but is there a "flavour" of Rebelds that changes culture???
Culural Assimilation Event
In "In Nomine" there is an event that changes the culture of provinces into your own, the event script can be found in this path:
\Europa Universalis III\events\culturalspread.txt
Cultural Assimilation
Triggers
-Core Province
- you have a core in the Province
-Revolt Risk
- NOT 1 in the Province
-Same Religion
- the province has your country's religion
-Different Culture
- the province does NOT have your country's main culture
-Capital OR Neighbor
- the province is either your Capital OR you own a neighbor province with your same Culture and same Religion.
MTH
-2400 months -> 200 years
MTH Modifiers
-Exception: Greeks vs Turks in Asia Minor -> -95% MTH
- Province's Region: Turkey
- Province's Culture Group: Turko Semitic OR Byzantine
- Owner's Culture Group: Turko Semitic OR Byzantine
-Exception: Slavic vs Tartar -> -95% MTH
- Province's Culture: Khazak OR Kirgiz OR Siberian OR Tartar
- Owner's Culture Group: East Slavic OR West Slavic OR Baltic
-Exception: Prussian culture in Northern Germany -> -95% MTH
- Province's Culture: SaxonOR Pommeranian
- Owner's Primary Culture: Prussian
-Exception: Colonial -> -95% MTH
- Overseas Province: Yes
- Owner's Technology Group: Latin OR' Eastern' OR Muslim
- Owner's Culture Group: Germanic OR Scandinavian OR British OR Gaelic OR Latin OR Iberian OR French OR Basque OR Finno-Ugric OR South Slavic OR West Slavic OR East Slavic OR Baltic OR Byzantine OR Turko-Semitic
- Province's Culture Group: Germanic OR Scandinavian OR British OR Gaelic OR Latin OR Iberian OR French OR Basque OR Finno-Ugric OR South Slavic OR West Slavic OR East Slavic OR Baltic OR Byzantine OR Turko-Semitic
- Province's Continent: NOT Europe
- Province's Region: NOT North Africa
- Province's Region: NOT Middle East Central Asia
-Same Culture Group: -20% MTH
-Capital
- IS Capital: -20% MTH
- IS NOT Capital
- 10k pop.: + 10% MTH
- 25k pop.: + 10% MTH
- 50k pop.: + 50% MTH
- 100k pop.: +100% MTH
- 10k pop.: + 10% MTH
-Ideas
- "Church Attendance Duty": - 20% MTH
- "Divine Supremacy": - 10% MTH
- "Humanist Tolerance": +100% MTH
-Slider "Serfdom-Free Subjects"
- NOT -1: -10% MTH
- = 2: +10% MTH
-Stability
- = 1: - 10% MTH
- = 3: - 10% MTH
- = 0: +100% MTH
- = -1: +100% MTH
Effect
-Culture in Province turns into your country's main Culture.
List of Culture Groups
Germanic
Pommeranian
Prussian
Hannoverian
Hessian
Saxon
Rheinlaender
Bavarian
Austrian
Dutch
Flemish
Scandinavian
Swedish
Danish
Norwegian
British
English
American
Lowland Scottish
Gaelic
Highland Scottish
Welsh
Breton
Irish
Latin
Lombard
Umbrian
Sicilian
Iberian
Castillian
Catalan
Galician
Andalucian
Portugese
French
Cosmopolitan French
Gascon
Normand
Aquitaine
Burgundian
Occitain
Wallonian
Basque
Basque
Finno-Ugric
Finnish
Estonian
Sapmi
Ingrian
South Slavic
Slovenian
Croatian
Serbian
Bulgarian
Romanian
Albanian
West Slavic
Czech
Slovak
Polish
Hungarian
Schlesian
East Slavic
Russian
Ukrainian
Byelorussian
Ruthenian
Baltic
Lithuanian
Old Prussian
Latvian
Byzantine
Greek
Georgian
Armenian
Semitic
Maghreb Arabic
Al Misr Arabic
Al Suryah Arabic
Al Iraqiya Arabic
Bedouin Arabic
Maltese
Berber
Persian
Persian
Azerbadjani
Baluchi
Kurdish
Altaic
Turkish
Turkmeni
Mongol
Tunguz
Pashtun
Tajihk
Uzbehk
Khazak
Kirgiz
Uralic
Siberian
Yakut
Tartar
Central American
Zapotek
Mayan
Aztek
South American
Inca
Guarani
Aimara
Amazonian
Patagonian
Guajiro
Teremembe
Tupinamba
Mataco
Carribean
Arawak Carib
North American
Dakota
Cherokee
Pueblo
Aleutian
Inuit
Cree
Iroquis
Huron
Navajo
Shawnee
Delaware
Creek
East Asian
Japanese
Manchu
Chihan
Cantonese
Korean
Mon Khmer
Khmer
Mon
Vietnamese
Malay
Polynesian
Cham
Malayan
Filipino
Madagascan
Sulawesi
Thai
Central Thai
Lao
Northern Thai
Shan
Burman
Burmese
Tibetan
Chin
Pacific
Papuan
Aboriginal
Melanesian
Moluccan
Eastern Aryan
Assamese
Bengali
Bihari
Nepali
Oriya
Sinhala
Hindusthani
Avadhi
Kanauji
Panjabi
Kashmiri
Western Aryan
Gujarati
Marathi
Sindhi
Rajput
Dravidian
Kannada
Malayalam
Tamil
Telegu
African
Madagasque
Tuareg
Senegambian
Dyola
Nubian
Somali
Bantu
Swahili
Ethiopian
Kongolese
Shona
Mali
Yorumba
Aka
Ashanti
Note that some of these culture groups only appear in uncolonized, unowned provinces.

