As a dedicated Stellaris player, I’ve noticed a substantial evolution in the role of vassals within my interstellar empire. No longer mere subjects, they now serve as specialized allies, potentially boosting or burdening my galactic dominion, based on my strategic acumen and objectives. Regardless if you’re using the Overlord DLC or not, there are potent vassal types that can significantly impact any playthrough.
In Stellaris, the ideal vassal for your empire can significantly impact your mid-to-late game economy, whether it’s boosting passive income, research, or direct military support. To aid you in picking the best vassal type, this guide will explain each type to facilitate a more educated decision.
Best Vassal Type In Stellaris
In the game Stellaris, there are more than five distinct categories of vassals, each with their own advantages and disadvantages, making them suitable for various scenarios. Additionally, certain types can offer empire-wide bonuses, so here’s a detailed analysis of each vassal type and when it might be beneficial to create them.
When creating vassals, it’s crucial to be mindful that rebellion might occur. It’s advisable to ensure you possess sufficient influence and resources before attempting to establish vassals throughout the cosmos.
Tributary / Subsidiary
Pros | Cons |
---|---|
No DLC required | Won’t assist in wars |
Provides passive income | You need to defend them |
Requires minimal management | No advanced bonuses |
Can’t force obligations on you | No military utility |
Tributaries and subsidiaries function similarly, but here’s the key difference: Subsidiaries are specifically associated with Megacorps. These satellite entities act like your empire’s constant financial support system, regularly providing you with energy credits and resources, while requiring minimal reciprocal action.
Because they aren’t compelled to take on responsibilities, these vassals provide a high degree of control at a minimal cost. However, it’s important to note that they typically don’t engage in battles alongside you. The advantage here is the abundance of resources they offer without much expense, and considering this self-defense strategy during conflicts can be seen as a minor trade-off.
Standard Vassal
Pros | Cons |
---|---|
Fully customizable contract | Requires micromanagement |
DLC not required | Can cost you resources |
Can be integrated into empire | Has risk of rebellion |
Can copy traits of other vassal types | Bonuses are weaker overall |
Common vassals serve as versatile allies. You can customize their agreement to emulate other specialized subjects or effortlessly incorporate them into your domain. Though they lack the distinct advantages of specialized vassals, their adaptability is valuable. However, be cautious with contract decisions or stringent terms as these may occasionally lead to discontent or ineffectiveness.
Scholarium
Pros | Cons |
---|---|
Massive research bonuses | Weakened military strength |
Exclusive overlord holdings | Needs constant protection |
No tithe required | DLC required (Overlord) |
Good for tall empires | Limited defensive utility |
If you have an early interest in technology, Scholariums are a fantastic option for you. They directly channel research into your empire, enabling you to surpass competitors technologically. As a leader, you can even construct unique research facilities within their territory. Keep in mind, however, that as they grow stronger, they become increasingly vulnerable, so you’ll need to make a long-term commitment to protect them.
Satrapy
Pros | Cons |
---|---|
Large resource tithe | Very rare event trigger |
Combines benefits of multiple vassal types | High setup difficulty |
Strong economic partner | Limited strategic flexibility |
Satrapies are a unique feature that typically arise during a significant mid-game event, specifically the emergence of the Great Khan. By successfully transforming a revived Khanate into a Satrapy, you’ll acquire a highly beneficial economic partner who pays substantial tributes. However, achieving this setup can be complex and heavily dependent on random factors (RNG). But if you pull it off, it’s a major advantage that could significantly boost your empire’s economy.
Prospectorium
Pros | Cons |
---|---|
Provides bonus minerals and resources | Reduced research output |
Overlord can build mining holdings | Requires Overlord DLC |
Great for wide empires | Vassal becomes tech-backward |
Passive resource flow | Military is average at best |
The Prospectorium serves as an excellent choice for a feudal-like domain when it comes to raw resources, particularly beneficial in gameplay with an abundance of minerals or expansive empires requiring additional alloys. However, their scientific advancement is slow due to their intense focus on mining and resource extraction, which hinders their technological development. It’s recommended to keep them for a limited time to maximize economic gains.
Bulwark
Pros | Cons |
---|---|
Heavily militarized defense vassal | No economic benefit |
Fortifies your borders | Low research and economy |
Great for chokepoints | Over-specialized |
Overlord gets military bonuses | Needs Overlord DLC |
As a devoted admirer, let me tell you, the Bulwark serves as an unyielding defensive ally, excelling at warding off any potential menace. They bolster your military might by deploying robust fleets and fortifying their starbases, offering you defensive perks simultaneously. Yet, they contribute nothing to your economy, and their single-minded focus makes them less than ideal for long-term alliances due to their limited versatility.
Protectorate
Pros | Cons |
---|---|
Can be turned into a vassal later | No early-game benefit |
Easy to advance civilizations | Very weak until upgraded |
Good in late game | Poor resource or military support |
Works as a stepping stone | Can take decades to evolve |
As a gamer, I find Protectorates to be leftovers from the ancient Stellaris game mechanics. Although they’re still around, they don’t offer much in terms of tangible benefits beyond helping primitive species join the galactic family. They don’t pay taxes, can’t engage in combat, and often take an eternity to evolve into valuable allies. If you’re aiming for raw power, it’s best to overlook them unless you’re pursuing a pacifist or friendly approach to interstellar diplomacy.
Which Is the Best: Protectorate, Vassal, or Tributary?

As a gamer, I’d say among the three traditional types – Protectorate, Standard Vassal, and Tributary – the Tributaries (or Subsidiaries) are hands down the top choice for me. They offer a steady stream of resources without any additional DLC needed, and they free you from the hassle of strict contractual management. They’re the perfect way to subtly yet significantly bolster your empire’s economy with minimal supervision required.
- Best for Most Empires: Tributary/Subsidiary
- Best for Customization: Standard Vassal
- Best for Tall Builds: Scholarium
In terms of priority, common vassals take the second spot due to their adaptability, particularly when managing diplomatic or expansion-oriented empires. On the other hand, protectorates stand out as the least desirable option, with a significant gap in preference, because they develop slowly, provide no early advantages, and are primarily useful for long-term development scenarios.
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2025-05-19 09:45