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Development is a province attribute, which replaces the former system of static base tax and manpower. There are three kinds of development in a province - base tax, production, and manpower, corresponding to administrative, diplomatic and military power respectively. Players can increase province development values by using monarch power; players who have the Rights of Man expansion can develop subjects' provinces.
Province development is involved in some Age Objectives:
- Having a cored province with at least 30 development is an objective in the Age of Discovery.
- Having a total development of at least 100 while the nation's capital is not in Europe, Asia and Africa is another objective in the Age of Discovery.
- Having a capital with at least 50 development is an objective in the Age of Revolutions.
- Having a subject with at least 250 development is another objective in the Age of Revolutions.
Effects of development
A province gains per development level in:
|−1%||Local recruitment time|
|+0.2||Local goods produced|
|−1%||Local shipbuilding time|
+250 maximum manpower
Irrespective of category, every point of development has the following effects on the individual province (note that only coastal provinces get sailor and naval force limit bonuses):
|+0.1||Possible number of buildings|
|+2%||Supply limit modifier|
|−0.1%||Local missionary strength|
|+0.1||Land force limit|
|+0.1||Naval force limit|
|+0.2||Local trade power|
|+0.1||Possible Manchu banners|
- +3% local development cost per point above 10 total development. This increase rises by 3% every 10 total development (+6% at 20, +9% at 30, etc.).
- +1% Province warscore cost
- +1% Province overextension value
- +10 Core creation cost
- +8 Diplomatic annexation cost
- Increases the percentage of the local province culture in the player's nation.
- If the province belongs to an estate, the estate's loyalty will increase as if it had been granted a 1 development province.
- Increases the institution presence in the province by (new development level/6). This is capped at +10% increase.
- Most institution spread modifiers scale linearly with province development.
Development levels over 30 no longer contribute to higher coring and culture conversion costs. For every 10 levels of development, a province gets an additional building slot.
In addition, the nation gains +1 caravan power for each 3 total development levels, up to 50.
Developing a province
Monarch points (, or ) can be used to increase base tax, production, and manpower values, respectively. A province's base tax, production or manpower cannot be increased if its value is already more than that of the other two combined (for example, if the province's base tax is 3 and production/manpower 1 each, only an improvement of production or manpower is possible). In other words, the cap for one development type is equal to the other 2 plus 1.
The base cost for developing a province is 50 monarch points. Development efficiency from administrative technology affects the base cost by additional −10% at level 17, 23 and 27.
Development cost modifiers
The development cost modifiers influence how much it costs to develop a province. The cost to develop provinces increases by +3% per point above 10 total development. This modifier itself increases by 3 for every 10 total development. For example, a province upgrading from total development level 30 to 31 will have "Development: +99%" modifier.
All development cost modifiers are applied in an additive fashion.
Stacking development cost modifiers
Developing a province to get an institution can be expensive in terms of monarch points; it is recommended that the player choose to develop a province with multiple modifiers that stack. To be specific, to attain the maximal reduction in development cost, the player should choose to locate their capital in a province with a Centre of Trade, temperate climate, farmlands, and that produces cloth or cotton. The following provinces have this combination of modifiers: Lublin, Baghdad, Macedonia, Cairo, Regensburg, London, Milan, Prague and Amsterdam. These provinces have a cumulative reduction in developing cost of −20% (−5% from farmlands, −5% from CoT, −10% from cloth/cotton).
|Terrain||Development cost modifier|
|Climate||Development cost modifier|
Ideas and traditions
These modifiers lower the cost for developing a province. Starting with patch 1.28, the Common Sense DLC is no longer needed to develop provinces. On prior versions, these modifiers are replaced with a goods produced modifier of the same size if Common Sense is not active.
Note: The minimum cost is capped at 3 power per development.
|−5%||in the capital province per 100 country development (up to −50%)|
|−20%||if a University is built in the province|
|−20%||in Capital area, with Invite Minorities from Abroad action as Feudal Theocracy|
|−10%||if province trade good is Cloth or Cotton (requires )|
|−10%||with the decree "Expand Palace Bureaucracy" active, available to the Emperor of China|
|−10%||with parliamentary issue "Land Reform" active|
|−10%||as an Imperial Free City|
|−10%||if Burghers are at 60 loyalty and 60 influence (lower at less influence)|
|−10%||as Orthodox with Icon of Christ Pantocrator active|
|−10%||as Muslim with Maliki school followed or invited.|
|−10%||as Shinto with Adaptive Isolationism level|
|−10%||as Tengri with Theravada as syncretic faith|
|−10%||as Fetishist with Buddhism cult|
|−10%||with Anglican religion|
|−10%||with Encourage Development edict|
|−10%||if the state the province is in has a level 3 Center of Trade, a "World Port" or "World Trade Center".|
|−5%||if the province is a level 2 Center of Trade, an "Entrepot" or "Market Town".|
|−5%||with "Trading in Tropical Wood" bonus|
|−5%||as Protestant with "Organized through bishops" aspect active|
|−5%||for members of the Holy Roman Empire, if the "Call for Reichsreform" reform is passed|
|−5%||for embracing the Renaissance institution|
|−1%||per 500 natives left alive in a colonized province|
|+0.1%||per 1% of devastation|
|+0.5%||as Confucian for each point of Harmony less than 50 (up to +25%)|
|+50%||for being a primitive nation|
|+50%||for being a subject nation|
|Available only with the Cradle of Civilization DLC enabled.|
A province can be exploited for short-term benefits by permanently reducing its development by 1.
- Exploit Base Tax to gain 60 months worth of that province's tax income
- Exploit Production to gain 60 months worth of that province's sailors
- Exploit Base Manpower to gain 60 months worth of that province's manpower
A province has to have at least 2 development in a category for it to be exploitable, and is required to have at least a territorial core. A province cannot be exploited within the 20 years following its last exploitation, even if it changes owners.
AI generally will not develop provinces to more than original development × 2 or 10 development, whichever is higher. These numbers can be changed in defines.
The exception to this rule emerges when the AI develops one province for the purposes of institution spread, introduced in Patch 1.18. At this time the exact behaviour of the AI regarding this is not well understood. The AI does not develop provinces anywhere as efficiently as a human player may do so.
- Prioritize provinces with 9 and 19 development (followed by 8 and 18, etc.) to open an additional building slot.
- Improve production in provinces with high value trade goods before provinces with lower valued goods.
- Evenly developing a province (4/4/4) is not as lucrative as weighting towards one type of development and reaping a greater bonus with an appropriate building (6/3/3 and a church). Combining with an appropriate estate can increase this further but at the trade off of the increased local autonomy affecting other aspects.
- Developing a province belonging to an estate increases its share of development. This can save having to give them another province if close to the required percentage.
- Developing a coastal province instead of an inland province also improves sailors and trade power (through the +25% coastal province modifier).
- Consider timing: Is the province close to prosperity? Is an institution about to spawn? Is the University about to finish construction? Is the parliamentary issue about to expire? Has the state edict reset time elapsed? Delaying or expediting development can save vital monarch points.
- patch notes 1.15