Stellaris megastructures – a quick guide

So, you wish to find out about Stellaris megastructures? These gargantuan feats of engineering have been first launched within the first Stellaris DLC – Utopia – and vary from habitats and gateways, to extra specialised constructions reminiscent of Dyson Spheres, large artwork galleries, and a tool that may destroy your complete galaxy.

Some megastructures – like Ring Worlds – will spawn naturally even in case you don’t personal any of the expansions, and also you’ll have the ability to restore them when you’ve got the best tech. You received’t have the ability to analysis and construct any new ones although aside from gateways with out some DLC. Fairly a number of have been included in Utopia, for instance, however MegaCorps, Federations, and Nemesis launched new choices as effectively.

Different expansions, reminiscent of Distant Stars and Artificial Daybreak, additionally work together with the megastructure mechanics in a roundabout way – the previous launched the L-Gate cluster, for instance, whereas the latter will trigger extra pure Ring Worlds to spawn in a particular place. We’ve put collectively this fast information to Stellaris megastructures, we hope you discover it helpful, though for a extra thorough breakdown you can even discuss with the official Paradox Wiki, which we’ve drawn plenty of data from.

Stellaris Megastructures

Here’s a record of all buildable megastructures in Stellaris:

  • Gateways
  • Habitats
  • Ring Worlds
  • Dyson Sphere
  • Science Nexus
  • Sentry Array
  • Matter Decompressor
  • Mega Artwork Set up
  • Strategic Coordination Heart
  • Interstellar Meeting
  • Mega Shipyard
  • Aetherophasic Engine

Stellaris megastructures – fundamentals

You will want a development ship to construct the preliminary stage of all megastructures. Many require a number of levels to finish, however you solely want the ship for the preliminary stage.

You can even discover ruined variations of a lot of the megastructures within the recreation in case you discover the galaxy. To restore these pre-existing constructions, you solely want the Mega-Engineering expertise.

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Relying on galaxy technology settings, you can even have as much as 8 naturally spawning ring worlds within the recreation in varied states of restore.

Just one multi-stage megastructure – aside from the Ring World – could be constructed per empire. Repairing a pre-existing megastructure received’t set off any achievements as soon as completed, but it surely additionally doesn’t depend in opposition to the construct restrict both. Neither does conquering such constructions from different empires.

Megastructure-related bonuses:

  • The Grasp Builders ascension perk will increase the construct velocity by +50%
  • The Dwelling Steel Mega-Building edict will increase the construct velocity by +50%
  • The Architectural Renaissance unity ambition additionally will increase the construct velocity by +50%
  • Utilizing the Remoted Contingency Core relic tremendously will increase the construct velocity by +300% for 10 years


Stellaris megastructures – Gateways

You don’t want any expansions to utilize gateways – deserted ones could be discovered dotted through-out the galaxy, and you’ll construct your personal when you’ve researched the best expertise.

An exception are the L-Gates, which result in the mysterious L-Cluster – you want the Distant Stars growth for these.

It’s price noting that the expertise will solely seem in case you’ve encountered an deserted gateway. Should you swap these off throughout galaxy technology, you’ll by no means have the ability to construct your personal gateways.

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Every system can solely have one gateway, however it may be constructed in programs that additionally produce other L-gates or pure wormholes.

Gateways can journey to every other gateway, as long as the empire that owns the vacation spot gate has its borders open and isn’t at warfare with the travelling fleet’s empire. Regular empires can’t shut their borders to fallen empires, subsequently your gates can at all times be accessed besides whereas at warfare with them. Claims could be prolonged via gateways, nevertheless provided that the borders are open on the aspect that’s getting claimed.

A ring world wrapped around a sun in space game Stellaris

Stellaris megastructures – Habitats

Habitats are synthetic dwelling areas which might be constructed above planets. And have a 70% base habitability score for each species within the recreation.

You want the Utopia add-on to assemble them, though a work-around is to buy the Federations growth as that comes with the Void Dweller origin – which additionally unlocks the flexibility to construct habitats.

Apart from gateways, they’re the one different single-stage megastructures in Stellaris, and are in-built one go together with a development ship. They’ll solely be constructed round a daily planet with none anomalies.

A mega shipyard in grand strategy game stellaris

Stellaris megastructures – multi-stage

There are ten different megastructures in Stellaris, all multi-stage, and all requiring completely different expansions. There are much less guidelines and restrictions round them in comparison with habitats and gateways, though a system can solely possess one in every of these constructions at a time.

It’s also solely doable to construct, improve, or restore one in every of these constructions at a time, though there are some issues that may improve this cover. Please seek the advice of the Paradox Wiki for extra detailed notes on prices, construct occasions, megastructure advantages, in addition to different miscellania.

Here’s a breakdown of which megastructures could be constructed with which Stellaris growth:


  • Ring World
  • Dyson Sphere
  • Science Nexus
  • Sentry Array


  • Matter Decompressor
  • Mega Artwork Set up
  • Strategic Coordination Heart
  • Interstellar Meeting



We’ll hold this information updated as any new content material for megastructures will get added through future patches or expansions.

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