Gigastructural Engineering & More (2.3)

If you liked this item, please rate it up on Steam Workshop page.

Authors: Elowiny, Randomâ„¢, Zparadis, Cephalon Sithalo

Last revision: 16 Jun at 13:17 UTC (116)

File size: 998.23 MB

On Steam Workshop


Do you like megastructures? I sure do! This mod aims to expand on the concept of megastructures by adding more megastructures you can build, which consist of five "gigastructures" (Megastructures larger than a ringworld or a dyson sphere), and three mid-game science megastructures (One for each field of science) that give bonuses to various things like shield HP, and it also adds various other megastructures that don’t really fit into a category.


– 35 new megastructures with a wide range of effects, including weaponized planets, stellar lasers, and system-spanning computers!
– 11 unique systems that can contain ruined Megastructures and unique discoveries!

The new Megastructures

The mod, as said above, adds 35 new megastructures.
Please note that they might require more balancing, so feel free to point out something you think isn’t right.

You can disable the megastructures you don’t like using the integrated Megastructure Manager!

DOCUMENTATION (Feel free to contribute!)[]

Tech tree visualizer (Includes this mod)[]

Cooperations with other mods

Using C1CK’s "Enhanced Robomodding" mod, building this mod’s megastructures will unlock additional robot traits.
Using this mod and Yindiram The Faerie Dragon’s "The Decadence of Sanity" mod, building the Psionic Hypersiphon will trigger new Shroud events!
The "Star Lifters" mod has been integrated into this mod! (With the author’s permission of course)
The model from the "Stellar Catalyst" mod is used in here (Also with permission)
The "Planetary Computer" mod has been "revived" in within this mod!
City Ringworlds from Sithalo’s "Ascendency Ringworlds" have been added to this mod. Sounds from Chirumiru’s "Stellaris Enhanced Sound Project".
A megastructure from "The Utopian Dream 1.9", the Equatorial Shipyard, has been revived in this mod.

It is recommended to check out the documentation.

So, the new megastructures are:

The Crystal Megabore
A large orbital station which drills into a molten planet’s core, harvesting Crystals.

The Superatmospheric Umbegaseous Collecto-Condenser
Basically the stripmine, but for Gas Giants. Makes Energy, Exotic Gases, and Motes.

Ecumenopolis Ringworlds
Part of Sithalo’s Ascendency Ringworlds mod has been integrated in the form of Ecumenopolis Ringworlds! Requires Megacorp and the Ecumenopolis perk.

The Equatorial Shipyard
Revived from AlphaAsh’s "The Utopian Dream 1.9" mod, features one ring to process alloys and one ring to add extra shipyards to the local starbase.

The Lunar Speculorefractor
A gigantic refraction device to brighten up the skies of nearby planets!

That’s all the megastructures for now! Feel free to suggest something!

Planned features (Maybe, if I’m motivated enough)

– More megastructures, of course
– Unique megastructure-based endgame crisis
– Adventure/Story mode

By the way, I hate typos. If you spot any typo or error, tell me!


Q: Is this the mod with the megastructures teased in the subreddit?
A: Yes.

Q: I wanna add something to the mod!
A: If you’d like something you made to be in this mod, simply friend me and we can discuss it!


Overwrites the "habitable_structure" scripted_trigger, so might mess with some mods that also overwrite it. Should still work mostly fine.

Real Space Compatibility Patch

Known issues



The mod is currently available in English, Russian and Polish (Russian translation by Lex, Polish by Grzesio). Might get more translations in the future.


Nikkle: For creating the ringworld cluster mod which helped me understand how models work
Djohaal: Substellar Compressor asset & idea
Sam: Planetary Computer asset & idea
Sithalo: Ecumenopolis Ringworld
Chirumiru: Sounds for Ecumenopolis Ringworld
James Fire: Orbital Arcology, Military Academy, Documentation, overall being useful
AlphaAsh: Equatorial Shipyard idea and planet view art

Have fun building Gigastructures, and don’t forget to rate and comment.
HOWEVER, I will outright ignore negative comments that just say "This sucks". I want constructive criticism, and telling me the mod sucks is absolutely useless and a waste of time. Please elaborate on what you think is bad if that’s the case

Required DLC:

These DLC should be installed in order to use this item.

Stellaris: Utopia

Old revisions of this mod are available below. Click the link to download.