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EU4 - Development Diary - 9th of June 2016

Hello and welcome to today's development diary for Europa Universalis IV. After much plotting and espionage, I have assumed direct control over these diaries, at least for the upcoming months while Johan enjoys some paternity leave.

The feeling of power this gives is immense. EU4 will allow you a similar feeling with a new feature in the upcoming expansion: Great Powers

In 1.18's accompanying expansion, which has yet to be name-dropped, we will grant the 8 most powerful countries in the world a "Great Power" status, granting them bonuses, new diplomatic options and, perhaps most importantly, a glow around your shield to show that you are the superior nation.

Before we address the shiny options and bonuses available to you, let's tackle the question of how to become a Great Power. As we had mentioned in a previous diary, the technology system is getting an overhaul and the Great Power mechanic will make use of this too. Your ranking as a Great Power depends on your Total Development plus half of your Subject Development, then divided by your tech cost. This ensures that early game, large powers such as Ming and Timurids will enjoy Great Power status but as Other powers rise and they lag behind with embracing new institutions, this status will be lost. Of course, If Ming, for example, stays united and forward thinking, they may not lose this status at all. Subject Nations cannot be Great Powers

As a great power you will enjoy a Power Projection bonus. One commonly raised issue is that if you are a huge power without equal your Power Projection is oddly low, since you cannot have any meaningful rivals. The greatest of the Great Powers will enjoy a +25 Power Projection bonus, with the other 7 gaining an increasingly smaller amount with rank 8 getting +10PP. Additionally, great powers will receive a prestige decay reduction. Other modifiers will likely be added before release as we continue to balance the system.

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Bonuses are all very well and good, but where's the fun in being great if you can't enforce your will on lesser beings? Four new diplomatic options are opened up uniquely for Great Powers:

Take on Foreign Debt – Pay off all the loans of the target independent non-GP country. Gives +10 relations bonus for every standard size loan of the target you clear, capped at +200, decaying 2/year Also grants +1 trust for every loan cleared, or +2 favours if you have The Cossacks. Requires enough money to pay off target’s loans.

Influence Nation – Pay 1 year of target income to increase relations and grant +1 monarch points in their weakest category for 10 years in a target independent non-GP nation. This raises their opinion of you by 25 for the 10 years, also gives +5 trust. Going to war with them cancels this bonus.

Intervene in War– If there is an ongoing war between great powers but an imbalance in the number of GPs involved, you can make it your business to intervene. For example, if GP Britain is singlehandedly fighting GP France and GP Spain, you as a Great Power Commonwealth can intervene on Great Britain's side to balance out the number of great powers involved.

Break Alliance – This will force a nation to break its alliance with another. They will accept if the target nation is sufficiently afraid of you and you will gain a truce with the nation you force this upon. Useful for stripping your war target of pesky roadblocks.

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Finally, you will want to hold on to your status as a great power. If you are pushed out of the top 8 nations, you will be given a 5 year grace period to regain your Great Power Score. During this time you will still have access to Great Power options but if you cannot regain your standing then you will lose them until you rise again or topple those who would claim to be greater than you.

Current 1444 Great Powers:

eu4_13.png



As usual, the nitty-gritty numbers are very much subject to change as we refine the features.

Great Powers will be available as a paid feature in the upcoming expansion, which will be released alongside the 1.18 patch.

Next week we'll be in the presence of our King/Khan/Chief/Sultan/Emperor/Malik, so I hope you're on your best behavior.
 
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The AI does use Great Power mechanics. They also use Threaten War, albeit rarely.

Just out of curiosity, are AI's usage of Threaten War moddable? I'm curious to see how others players could tweak AI diplomatic behavior.
 
Another question I have thought up belatedly of now:

@DDRJake : How will the Intervene War option relate to the wars of religious league? Are late entry by a GP into these wars allowed provided conditions are met? So far, I haven't heard any restrictions on type of wars allowed for this option to be used.
 
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I know, I know, I'm quite late to this party, but ...


Before we address the shiny options and bonuses available to you, let's tackle the question of how to become a Great Power. As we had mentioned in a previous diary, the technology system is getting an overhaul and the Great Power mechanic will make use of this too. Your ranking as a Great Power depends on your Total Development plus half of your Subject Development, then divided by your tech cost. This ensures that early game, large powers such as Ming and Timurids will enjoy Great Power status but as Other powers rise and they lag behind with embracing new institutions, this status will be lost. Of course, If Ming, for example, stays united and forward thinking, they may not lose this status at all. Subject Nations cannot be Great Powers

Does this mean Merchant republics are likely to never be a great power?

Trade Leagues are not subjects, the MR itself is more or less limited to 20 provinces. The only way I see for a MR to become a great power would be to dismantle every big country so they are just the biggest under a lot of small ones.


If it really is this way, could you please consider changing this so that Trade Leagues count as subjects for the process of determining a great power?
 
Trade Leagues are not subjects, the MR itself is more or less limited to 20 provinces.
The MR itself is limited to 20 state cores.

It can own as many provinces as it likes as long as they're in territories rather than states.
 
Oh didn't know that, thought I can only have 20 counties total. Still, as a MR you won't likely have regular subjects but your trade league. So you still lose a lot of potential great power points