Console:Subject empire

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This article is for the console version of Stellaris only.

A subject empire is an Empire that has a special diplomatic relationship with another empire of superior strength. In the default galaxy map mode subjects have the same color as their overlord.

An empire can become a subject either forcefully through wargoals or willingly, though the latter requires both a superior relative power and a positive attitude towards the superior party. If an empire becomes a subject willingly it brings a temporary +30 Diplomacy opinion.png Opinion. If it becomes a subject forcefully it brings a temporary −30 Diplomacy opinion.png Opinion

If they have fleets available, subject fleets tend to follow the overlord's.

The relative fleet power between an overlord and its subjects is always available regardless of intel level.

Subject types[edit source]

There are a number of types of subjects available depending on the overlord's government. Most of them have to pay a certain tribute to the overlord.

Type Tribute Can expand Diplomacy Protected Joins overlord's wars Can be integrated Other effects Overlord requirements
Diplomacy istributary.png Tributary
  • Energy.png 25% Energy Output
  • Minerals.png 25% Minerals Output
Yes.png Yes.png Yes.png No.png No.png
  • Not Auth corporate.png Corporate authority
Diplomacy isvassal.png Vassal No.png No.png Yes.png Yes.png Yes.png
  • Not Auth corporate.png Corporate authority
  • Less than 50% technological superiority
  • Neither empire has Civic inwards perfection.png Inward Perfection civic
Diplomacy isprotectorate.png Protectorate No.png No.png Yes.png No.png Yes.png
  • Subject gains Research.png −80% Research Cost towards technologies researched by the overlord
  • Overlord gains Influence.png +0.25 Monthly Influence
  • At less than 50% Technological Level difference the Protectorate becomes a Vassal
  • Not Auth corporate.png Corporate authority
  • More than 50% technological superiority
  • Neither empire has Civic inwards perfection.png Inward Perfection civic
Diplomacy istributary.png Subsidiary Energy.png 25% Energy Output Yes.png Yes.png Yes.png Yes.png No.png
  • Auth corporate.png Corporate authority
Diplomacy hasvassal.png Dominion
  • Energy.png 25% Energy Output
  • Minerals.png 25% Minerals Output
Yes.png Yes.png No.png No.png No.png
  • Ethics are shifted towards Fanatic Spiritualist.png Fanatic Spiritualist if not Gestalt consciousness.png Gestalt Consciousness
  • Doctrinal Enforcers Awakened Empire
Diplomacy hasvassal.png Satellite Research.png 33% Research Output Yes.png Yes.png No.png No.png No.png
  • Watchful Regulators Awakened Empire
Diplomacy hasvassal.png Signatory Yes.png No.png Yes.png No.png No.png
  • Slavery and Purge policies stay set to Prohibited
  • Benevolent Interventionists Awakened Empire
Diplomacy hasvassal.png Thrall
  • Energy.png 25% Energy Output
  • Minerals.png 25% Minerals Output
No.png Yes.png No.png No.png No.png
  • Jingoistic Reclaimers Awakened Empire
Diplomacy hasvassal.png Scion Yes.png Yes.png No.png Yes.png No.png
  • Can use the Bring Into Fold Wargoal
  • Origins scion 1.png Scion origin
Diplomacy issatrapy.png Satrapy
  • Energy.png 10% Energy Output
  • Minerals.png 20% Minerals Output
  • Mod navy size add.png 30% Naval Capacity
Yes.png Yes.png No.png No.png No.png
  • House a Void Dwelling in the capital system
  • The Horde
  • Subject didn't rebel before

If an empire switches its authority to or from Auth corporate.png Corporate, its subjects' types remain unchanged.

Subject actions[edit source]

For subject empires the attitude is replaced by loyalty, expressing how content they are living under their Overlord’s rule. If a subject becomes disloyal they refuse any deal with the overlord and have a chance to start a war for independence, always waiting for an opportunity when something depletes the overlord's relative power (a taxing war, a larger uprising, a crisis, etc.). The loyalty is determined by the subject's opinion of the Overlord, which aside from the normal factors is also affected by the total military strength of all the subjects relative to the Overlord as well as that of those who support their independence.

An Empire is able to support the independence of another Empire's vassal. Doing this will count the supporting empire's fleet for the "relative power of subjects" opinion modifier, causing the subject to rebel if they stand a good chance of victory. If they do, the Empire supporting them automatically joins their war for independence.

Subject empires do not suffer from border friction and can therefore in some cases be utilized as buffer states between two empires that otherwise would have significant border friction issues.

The opinion penalty from Relative Power is reduced by 50% with the Civic feudal realm.png Feudal Society civic and by 33% with the Civic franchising.png Franchising civic.

Integration[edit source]

Vassals and Protectorates that an empire possess for longer than 3 600 Time days can be peacefully "integrated" by paying Influence.png influence, at a rate of 5 Influence.png influence a month. The base cost is 50, increased by 1 for each pop and 10 for each planet. Empires with the Ap shared destiny.png Shared Destiny ascension perk benefit from a -50% Influence.png influence cost to integrating subjects. Only one subject can be integrated at a time.

Once the integration is completed, all planets and ships of the subject are transferred to the overlord; the ships and starbases retain their graphic type. All leaders, resources and armies are removed; new scientists are required for their science ships.

Releasing as a vassal[edit source]

A player can create a vassal from their own territory by releasing one of their sectors as a vassal from the "Sectors" tab by clicking the "Create Vassal" button next to the sector they want to release. The player can then transfer additional systems to their vassal through the Trade option "Transfer System" if they so choose. Sometimes it is preferable to conquer systems and then release them as a vassal since this will create a vassal that shares the overlord's ethics and government. Notably, the vassal will be granted all its overlord's technology. The option to release a vassal is not available to Auth machine intelligence.png Machine Intelligences (except when you have no robot pops in the sector), Job purge.png Genocidal empires, species with Raiding bombardment.png Stellar Culture Shock, or the Hive-minded.png Hive-Minded and Nerve Stapled.png Nerve Stapled traits.

References[edit source]

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