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EU4 - Development Diary - 31st of July 2018

Good day and welcome to another Dev Diary for Europa Universalis IV. As July rolls to a close, Paradox HQ slowly sees its manpower trickle back in from Summer merriment and return to creating games. At this rate, who knows, we may be able to announce Dharma's release date in the not-too-distant future, as I have been not so subtly asked about many a time.

But what are we looking at today? We've covered almost all of the new mechanics for Dharma already, we'll finish it off today by talking about what we've done to make Centers of Trade more interesting.

Ever since EU4's release, Centers of Trade have been a constant flat bonus to a province. They can make otherwise uninviting land fairly desirable for conquest to drive up your trade power in a node for as long as you can hold the land. It works fairly well, but has lacked a depth to it that we're looking to change.

BNG COT.png


Firstly, and this goes for everyone who updates to the 1.26 Mughals version, Centers of Trade, both inland and coastal, will have 3 different levels, allowing them to affect their province, the owner and the lands around them. These are:

(coastal)
  • Staple Port:
    • + 5 trade power,
  • Entrepot:
    • +10 trade power, -5% dev cost, +10% institution spread
  • World Port:
    • +25 trade power, +0.25 Naval Tradition, +30% institution spread
    • For whole Area: -10% dev cost, +100% Sailors, +1 Building Slot
(inland)
  • Emporium:
    • +5 Trade Power
  • Market Town:
    • +10 Trade Power, -5% dev cost
  • World Trade Center:
    • +25 trade power, +30% institution spread
    • For Whole Area: -10% Dev Cost, +33% Manpower, +1 Building Slot
Our goal here is to bring a lot more variance to the Centers of Trade around the world, such that Genoa brings a bit more to the table than Barcelona, or Gujarati Khambhat feels far more of a thriving and tantalising target than Thana. Staple ports and Emporiums will bring only modest trade power bonuses. Entrepots and Market Towns are similar to how all old Centers of Trade used to be, while World Ports and World Trade Centers not only bring benefit the provinces dearly, but also benefit the area around them and offer the owner a way to gain Naval Tradition. Note that Centers of Trade do not consume buildings slots.

With this, the Trade Center levels across the world have been crafted to model the world's situation and, with the scaling of their effects, has allowed us to add considerably more Centers of Trade than we have been at liberty to do before.

Europe:
Euro COT.png


India:

Indian COT.png



In addition to this, Dharma owners will see the levels of Centers of Trade fluctuate both through their own actions, and those of the nations around them. Centers of Trade in either States or Trade Companies can be upgraded for a cost of 200 Ducats to level 2, and 1000 ducats to level 3. The number of Level 3 Centers of Trade a nation can have is capped by the number of available Merchants that nation has, so a globe-spanning trade nation will be able to hold many of them if they so desire, while a less trade focused conqueror will have to be more picky.

Be wary however, since a Center of Trade will be downgraded by 1 level, either from 3 to 2 or 2 to 1 upon a change of owner, even through peaceful methods like diplomatic integration. Trade and traders will thrive in peaceful lands of certainty. You are also able to downgrade your own Centers of Trade if you are at peace, at a cost of 10 prestige.

That's our lot for today, we'll be back next week, rounding up on the National Ideas that we have not yet covered.

CLARIFICATION: if you don't own Dharma it gets locked to it's level. You do not lose any level when province owner switches. - Groogy
 
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As I understand you are capped for the level 3 trade-centers. But is there a reason why when doing WC or just blobbing, I wouldn't want to simply upgrade all other trade centers to level 2 regardless of where they are? (If nothing else at least the coastal ones, since that gives extra institution spread?)
 
As I understand you are capped for the level 3 trade-centers. But is there a reason why when doing WC or just blobbing, I wouldn't want to simply upgrade all other trade centers to level 2 regardless of where they are? (If nothing else at least the coastal ones, since that gives extra institution spread?)
It's a money sink. It doesn't give you much other than the extra trade power over your competition in the node.
 
Generally I do not see the purpose of this as it is a complete buff without downside. You spend money to earn more money + other stuff without any downside or decision making behind it.

How on Earth did you figure that? It's a way to sink money into getting a bigger share of the pie without increasing the size of the pie. And everyone can do it. Sounds like a pretty significant downside to me.

I mean, it's a buff to a human player in the way that any mechanic that a human is better at exploiting than the AI is, but that's true of basically every mechanic in the game.
 
@Trin Tragula both Ulm and Dresden are odd choices, as Leipzig and Augsburg would be the far more obvious choices. Augsburg was an important centre of trade along the Via Imperii connecting Italy with Germany. Also a lv 1 CoT for Innsbruck should be considered.
Leipzig would be the better choice because of the several fairs taking place there.
 
Shouldn't development play a part in this? It would be very interesting to, if you're a horde, raze a trade city and see it fall to level one. It would also be extremely stupid if i could then bring that 3 development province into a WTC without changing anything.
 
This will lead to more conquest of inland provinces as a trade power spreading along trade routes with inland COT. The institution spread is pretty neat.

All this theory crafting is great. The drawcards for me initially were the government reforms but the new Thunderdome is going to be rather fun. Trade tentacle bordergore, you heard it here first.
 
@DDRJake do you have a list or a summary of how many level three centers of trade there are at game start? This looks great!

At the start of the game, there are 5 Level 3 Centers of Trade: Genoa (GEN), Venezia (VEN), Khambhat (GUJ), Chittagong (BNG), and Canton (MNG).
 
What about colonial nations and subject nations? Are they able to upgrade their trade centers as well on their own?can the overlord do it for them?
You can upgrade in CN and in TC provinces yes.