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Stellaris Dev Diary #19 - Diplomacy & Trade

Greetings!

Today our humble offering covers some of the possible Diplomatic Actions and Trade Deals that can occur between Empires. As most of you may know, the basic diplomatic model used in our previous games work quite well and we will use something similar in Stellaris. All Empires will have opinions of all other known Empires, and different actions, events and internal politics will often affect that opinion. The ethics of each Empire will of course play a heavy role here, as pacifist Empires will react quite differently to aggressive wars than would a xenophobic militarist one.

In Stellaris trade between Empires is a very direct affair. Players can create two-way deals lasting a set amount of time, and our ambition is that most diplomatic actions should be available here as tradeable objects. For example, you can offer another Empire a monthly payment of Minerals in exchange for Military Access and updated Star Charts for a period of 5 years, or receive a vital supply of the rare Garanthium resource by offering a nonaggression treaty as well as a guarantee of independence should the other Empire feel threatened. If you want to simply gift or demand something you can leave one side of the trade-deal blank, and the AI will react accordingly.

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However, these kinds of trade deals will only happen between equal Empires and as most rulers know, it is better to gain something without having to give up something else. This is where more static diplomatic relationships come into play.

Tributary
A Tributary is forced to pay a set amount of their income to their Overlord each month and is most often established as the result of a lost war. The Overlord will not automatically defend them in wars, so the Tributary is caught in quite an unfortunate position until they have the military strength to either demand an end to their servitude or declare a war of independence.

Protectorate
A Protectorate is a subject protected by a (to them) technologically superior Empire. The Protectorate gains a major research-bonus to all technologies that their Overlord has already researched, and is automatically converted to a Vassal when having progressed far enough technologically.
Any pre-FTL species that is technologically enlightened is automatically created as a Protectorate under whichever Empire granted them the ability to space-travel. The Overlord in turn gains political Influence each month and the eternal gratitude of a bright-eyed new member of the galactic community.

Vassal
A Vassal is the most controlled type of subject-Empire. They will automatically join their Overlord’s wars, aggressive and defensive, and they have no autonomy when it comes to foreign policy or diplomatic relations. A vassal also run the risk of a full diplomatic integration by their Overlord.

Subject-actions
All types of subjects have a Liberty Desire expressing how content they are living under their Overlord’s rule. If a subject's Liberty Desire becomes very high they have a chance to start a war for independence, often waiting for an opportunity when they sense weakness (a taxing war, a larger uprising, a galactic crisis etc.). The Liberty Desire is a compound of a few different parameters but the main ones are the subjects opinion of the Overlord, the total military strength of all the subjects relative to the Overlord as well as if the subject can find someone who supports their cause.
As you would expect from our other games you are able to support the independence of another Empire’s vassal. Doing this will greatly increase their Liberty Desire (assuming the supporter has a fleet rivaling their Overlord) and may cause them to rebel. If they do, the Empire supporting them automatically joins their war for independence. You are also able to guarantee the independence of a smaller Empire, automatically entering the war on their side should they be attacked.

stellaris_dev_diary_19_02_20160201_diplomacy_insult.jpg


We’ve also added another vital diplomatic action to ensure that we can realistically model the complicated diplomatic interactions going on between advanced nations; the insult. Make sure to clearly express your feelings towards your enemy by insulting them, instantly lowering the opinion between your Empires greatly.

That was all for this week. Next dev diary will be written by Doomdark, expanding further upon War & Peace.
 
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Wasn't sphere of influence in Vicky2 and IIRC eu3?
In EU3, it was secondary and not really something the player interacted with as far as I understand.
 
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I hope a ''common sense'' mechanic like increasing development of planets are included at launch rather than a future dlc. Sitting tight in X place and unable to do anything was pretty plague before the common sense dlc of EU4 imo.
 
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Don't know if this question has been asked/answered already, but is there a way to claim space/is there some kind of mechanic like civ's culture borders? Reason is playing galciv3, AI had an annoying habit of colonizing planets in your borders and grabbing resources away from you with starbases in your borders as well. This should be considered an act of war, yet they do it anyway with a negative diplo modifier afterwards claiming you are too close to them. Civ4 had this as well somewhat, with them settling for resources near your border and then being mad you're culture pushing them to extinction :p

Really hoping there is some kind of sphere of influence mechanic at play, with good AI programming. The same should go both ways of course for the human, the AI considering it an act of war or very high threat if you grab their Mars for instance.
 
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Exactly why sphere of influence is better, we may not know what kind of influence they have but we do know they somehow are influencing this other faction. Works much better in sci-fi.
I don't know, I have no problem with vassalage, and in the context they provided it fits the description much better.
 
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I don't know, I have no problem with vassalage, and in the context they provided it fits the description much better.
Nah being a vassal seems to strictly a bad thing. SoI is a multifacceted thing, more like the vassaleges of CK.
 
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Still it's 2016 - how many protectorates, vassals or tributaries do you see nowadays?

Well not a lot.But you are seeing this as a human from earth. In 2016 we have this last (Indian) protectorate (That is Bhutan). This game is sci-fi. You don't know if another civilisation ever developed or stopped using vassal/tributary methods. Maybe tying some functions to Races/Empires would be a good idea.
 
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Where did you get the impression it was a bad thing?
Because the annexing you causes a game over?
In EU4 there are barely any times that swearing yourself to a more powerful neighbour is a good idea, in ck2 it is actually a multi facceted thing (in fact being a subject may be a little to good compared to what it was like in reality).
 
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Puerto Rico is pretty much a protectorate of the US. They've been offered integration, but must not like paying the taxes for statehood.

Some of the pacific islands are like that as well. Hawaii was similar, they accepted statehood, but was a protectorate/vassal before. Several US territories were independent, like Texas, but accepted integration.
 
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Because the annexing you causes a game over?
In EU4 there are barely any times that swearing yourself to a more powerful neighbour is a good idea, in ck2 it is actually a multi facceted thing (in fact being a subject may be a little to good compared to what it was like in reality).

This is EU4: When it comes to human overlord with an AI subject, you always annex. When it's a human overlord and a human subject, the thing is very different, and is entirely dependent on what they agreed upon. There are cases where a vassalage might be a better alternative than facing an AI coalition, or when you can't get powerful allies to defend you. It's certainly a good strategy when a player starts with a small nation and a neighbor player controls a medium-sized nation (e.g. Anhalt and Saxony). You become a subject with the understanding that your overlord will help you expand, then they release you and maintain a game-long alliance. When it's AI overlord and human subject, the AI never tries to annex if I'm not mistaken.
 
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This is EU4: When it comes to human overlord with an AI subject, you always annex. When it's a human overlord and a human subject, the thing is very different, and is entirely dependent on what they agreed upon. There are cases where a vassalage might be a better alternative than facing an AI coalition, or when you can't get powerful allies to defend you. It's certainly a good strategy when a player starts with a small nation and a neighbor player controls a medium-sized nation (e.g. Anhalt and Saxony). You become a subject with the understanding that your overlord will help you expand, then they release you and maintain a game-long alliance. When it's AI overlord and human subject, the AI never tries to annex if I'm not mistaken.
I don't know about EU4, but in EU3 the AI will propose annexation, but the human player is allowed to refuse. In fact, I don't think there's even a relationship penalty.
 
I'm not aware of a what peoples were considered to be vassals of other peoples. I'd have to watch the series all over again just to see where and who in the TV series. As for the expanded media, I only got so much I can get my hand on. Best to ask people who are really into the expanded universe.

Also it's also worth noting that vassals are also considered to be subjects. So its not like vassal =/= subject.
 
Ah the classic, (dare I say) "cliche" :rolleyes: 4X diplomacy screen.
Still looks awesome though! :D
 
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So....say, securing Israel's southern border - in this case.
Not entirely sure what you meant; where you referring to the new border between Egypt and Israel that was built originally to stop terrorism but now is also used to stop African refugees?

Also, what does a historian make of the relationship of the US to Israel? Is it always so clear to the public?
A very good point.
Most young or un-knowledgeable people assume the two have been best buds from the start. In truth, the relations between the two were strained or neutral at best up till the mid-60's when it changed.
 
Tributary
A Tributary is forced to pay a set amount of their income to their Overlord each month and is most often established as the result of a lost war. The Overlord will not automatically defend them in wars, so the Tributary is caught in quite an unfortunate position until they have the military strength to either demand an end to their servitude or declare a war of independence.

Protectorate
A Protectorate is a subject protected by a (to them) technologically superior Empire. The Protectorate gains a major research-bonus to all technologies that their Overlord has already researched, and is automatically converted to a Vassal when having progressed far enough technologically.
Any pre-FTL species that is technologically enlightened is automatically created as a Protectorate under whichever Empire granted them the ability to space-travel
. The Overlord in turn gains political Influence each month and the eternal gratitude of a bright-eyed new member of the galactic community.

Vassal
A Vassal is the most controlled type of subject-Empire. They will automatically join their Overlord’s wars, aggressive and defensive, and they have no autonomy when it comes to foreign policy or diplomatic relations. A vassal also run the risk of a full diplomatic integration by their Overlord.

This all sounds great tbh!

The Liberty Desire is a compound of a few different parameters but the main ones are the subjects opinion of the Overlord, the total military strength of all the subjects relative to the Overlord as well as if the subject can find someone who supports their cause.

NOOOOOOOOOOOOOOOOOO! The "relative strength compared to overlord" modifier was so broken in EU4! if it has to be in then at least tell me it's fixed, i want to be able to peacefully uplift as many species as possible, not have 5 1-planet vassals with a combined strength of 1/3 thinking i'm literally hitler because +147 Liberty desire from "combined strength of vassals"
 
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This all sounds great tbh!



NOOOOOOOOOOOOOOOOOO! The "relative strength compared to overlord" modifier was so broken in EU4! if it has to be in then at least tell me it's fixed, i want to be able to peacefully uplift as many species as possible, not have 5 1-planet vassals with a combined strength of 1/3 thinking i'm literally hitler because +147 Liberty desire from "combined strength of vassals"
Then make them part of a federation instead of vassals.