Territories and states
- See also: Core
States and Territories are a new mechanic introduced in patch 1.16 intended to replace the old Overseas mechanic. As such, all previous rules regarding overseas provinces, notably minimum autonomy, now apply to territorial provinces.
At its core, territories are based on areas (part of the revamped regions system) and a 2-part coring process. A newly conquered province is considered as part of a territory (unless it already belongs to one of the nation's existing states). Turning a territory into a state requires firstly coring all the uncored owned provinces in that territory and secondly payment of state maintenance. Afterwards, it is possible to instantaneously complete the coring process by paying the remaining coring costs.
This section may contain outdated information that is inaccurate for the current version of the game. The last version it was verified as up to date for was 1.18.
The following points provide a detailed summary of the system:
- Uncored provinces are treated the same, whether in a territory or a state; meaning they cause overextension and have a 75% Local autonomy floor preventing them from fully contributing to the nation.
- Coring provinces in a territory have reduced coring costs due to the Is territory modifier which applies -50% Core-creation cost (coring duration is not affected). The newly cored provinces gain territorial cores and remove the overextension penalty caused by the province.
- It is important to note that provinces with territorial cores:
- Retain the 75% Local autonomy floor.
- Can't be assigned estates.
- Lose their territorial core if they are conquered and would have to be re-cored once the province is re-gained.
- Once all the owned provinces in a territory are cored, it is possible to turn the territory into a state (from the province interface, above the buildings section). The change of status requires payment of State maintenance. States with territorial cores have a 50% Local autonomy floor (LA is reduced instantaneously to the new floor).
- To fully core state provinces requires paying the remaining 50% coring costs. This second coring phase is instantaneous and has 0% Local autonomy floor (LA is reduced instantaneously to the new floor only if it was not raised before (to lower unrest)).
- NB: Raising autonomy in a province not-yet fully cored will set the new autonomy floor to 100% and will annul the older "virtual" floor, not being reduced instantly after the full core anymore.
- Fully cored state provinces contribute fully to the nation and retain their cores even if conquered.
Notes: Do note that  revoking the status of a state (back to a territory) will not refund the administrative points used for the province coring (the cores will turn into territorial cores) and they'll be lost. Re-establishing the same territory into a state again would require to fully core the provinces anew;  assigning states in trade company regions prevents formation of trade companies (existing ones will be removed);  assigning states in colonial regions will not prevent colonial nations from forming in those provinces.
This section may contain outdated information that is inaccurate for the current version of the game. The last version it was verified as up to date for was 1.16.
The state maintenance is modified by the following:
|+0.007||Per Development level|
|+0.001||Times distance from the Capital|
Number of states
If Ming is an Empire rank (+10), is a Celestial Empire (+8) and has Administrative tech level 17 (+20), then: