编辑“巨型结构”（章节）

== Orbital megastructures ==
{{SVersion|3.4}}
Orbital megastructures can only be constructed in orbit of a planet. Unlike other megastructures, orbital ones do not require a construction site and are finished in a single stage by the construction ship. Each planet can only have one orbital megastructure, which can be further upgraded. Their appearance is dependent on the builder empire's ship set.

=== Habitats ===
[[File:Plantoid Habitat.png|thumb|Plantoid size 4 habitat]]
Artificial planets in all but name, habitats have a {{green|70%}} {{iconify|habitability||base}} for all species and can be built above planets. Habitats have a unique set of [[Districts#Habitat districts|districts]] distinct from normal planetary ones. Up to 4 district types are available on all habitats, with a fifth one being available if the habitat is built above a planet with a resource deposit. Building a habitat above such a planet leaves you unable to exploit its resource directly, destroying any mining or research station if one was present; however, {{iconify|strategic resources}} are added to the habitat as a special deposit, so they are not lost. Habitats still require [[colonization]], but the colony develops twice as fast on a habitat. Habitats start at {{iconify|size|pre=planet}} 4, which means they can hold up to 4 districts. They can be upgraded twice via decisions once all district slots are filled, up to size 8.

Habitats can be researched and built by any empire if the {{iconify|Utopia}} DLC is enabled. Otherwise, they are only available to empires with the {{iconify|Void Dwellers}} origin, which requires the {{iconify|Federations}} DLC. 
{| class="mildtable"
! {{iconify|Size|pre=planet}}
! Cost
! Time
! Housing buildings
! Required technology
|-
| 4
| {{icon|influence}} 150<br>{{icon|alloys}} 1500
| 1800 days
| {{iconify|Gestalt Consciousness}} only
| {{iconify|Orbital Habitats|24px}}
|-
| 6
| {{icon|alloys}} 1000
| 720 days
| {{icon|yes}}
| {{iconify|Habitat Expansion|24px}}
|-
| 8
| {{icon|alloys}} 1500
| 1440 days
| {{icon|yes}}
| {{iconify|Advanced Space Habitation|24px}}
|}

The {{iconify|Voidborne}} ascension perk adds {{iconify|habitability||+20%|green}} to habitats (resulting in {{green|90%}} habitability without other modifiers) and unlocks {{iconify|building slots||+2|green}}.

Habitats can be destroyed by a [[Ship#Colossi|Colossus]] as well as [[Crisis]] factions and cannot be rebuilt once destroyed.

If the {{iconify|Apocalypse}} DLC is enabled, empires created by the [[Marauders#The Horde|Horde]] breaking up start with the technology to construct habitats even if neither of the required DLCs is enabled. These habitats can be captured by other empires.

=== Orbital Rings ===
{{expansion|ovl}}{{expand|with="Orbital Ring modules"}}
Half megastructure and half starbase, Orbital Rings require the planet to be colonized before they can be built. They protect the planet from being invaded and can do everything a starbase can.
{| class="mildtable plainlist"
! Tier
! {{iconify|Alloys}} cost
! {{iconify|Influence}} cost
! {{iconify|Time}}
! {{icon|energy}} Upkeep
! Modules
! Buildings
! [[File:Mod starbase defense platform capacity mult.png|24px|link=Starbase#Defenses|Defense platform cap]] Platforms
! {{icon|health}} Hull
! {{iconify|Armor}}
! Weapons range
! Weapons
! Utilities
! Requirements
|-
| 1
| 1000
| 50
| 720
| {{red|2}}
| 2
| 0
| 2
| 5000
| 1000
| 100%
| 
* {{icon|slot l}} 1
* {{icon|slot m}} 3
| 
* {{icon|slot l}} 2
* {{icon|slot a}} 1
| [[File:Tech_orbital_ring_tier_1.png|24px|链接=Special:FilePath/Tech_orbital_ring_tier_1.png]] Orbital Rings technology
|-
| 2
| 1500
| 100
| 900
| {{red|3}}
| 3
| 1
| 4
| 10000
| 2000
| 150%
| 
* {{icon|slot l}} 2
* {{icon|slot m}} 6
| 
* {{icon|slot l}} 4
* {{icon|slot a}} 1
| 
* {{icon|building}} Capital tier 2 ''or''
* [[File:Button upgrade ascension tier.png|24px|link=Designation#Planetary ascension]] Planetary Ascension tier 3
|-
| 3
| 2000
| 150
| 1080
| {{red|4}}
| 4
| 2
| 6
| 20000
| 2000
| 200%
| 
* {{icon|slot l}} 3
* {{icon|slot m}} 9
| 
* {{icon|slot l}} 6
* {{icon|slot a}} 1
| 
* {{icon|building}} Capital tier 3 ''or''
* [[File:Button upgrade ascension tier.png|24px|link=Designation#Planetary ascension]] Planetary Ascension tier 5
|}

In addition to the regular [[Starbase#Buildings|starbase buildings]], Orbital Rings can construct a set of buildings that improve the planet's output. All of them take one year to build.
{| class="mildtable plainlist"
! width=1% | !! Building !! Cost !! Upkeep !! Effects !! Required technology !! width=35% | Description
|- id="Climate Optimization Stations"
| [[File:Orbitalring food hub.png|链接=Special:FilePath/Orbitalring_food_hub.png]]|| Climate Optimization Stations
| 
* {{icon|alloys}} 100
* {{icon|volatile motes}} 100
| 
* {{icon|energy}} {{red|2}}
* {{icon|volatile motes}} {{red|1}}
| {{icon|pop food}} {{green|+2}} Food from Farmers
| {{iconify|Advanced Food Processing|24px}}
| ''Detailed monitoring of local conditions means we can influence the planet's climate at a regional level, increasing agricultural yields.''
|- id="Low Gravity Mega-Refiners"
| [[File:Orbitalring mineral hub.png|链接=Special:FilePath/Orbitalring_mineral_hub.png]]|| Low Gravity Mega-Refiners
| 
* {{icon|alloys}} 100
* {{icon|volatile motes}} 100
| 
* {{icon|energy}} {{red|2}}
* {{icon|volatile motes}} {{red|1}}
| {{icon|pop min}} {{green|+2}} Minerals from Miners
| {{iconify|Advanced Mineral Purification|24px}}
| ''Centralizing mineral refining operations on the Orbital Ring allows for novel techniques that increase mining efficiency.''
|- id="Stratospheric Ionization Elements"
| [[File:Orbitalring energy hub.png|链接=Special:FilePath/Orbitalring_energy_hub.png]]|| Stratospheric Ionization Elements
| 
* {{icon|alloys}} 100
* {{icon|exotic gases}} 100
| 
* {{icon|alloys}} {{red|2}}
* {{icon|exotic gases}} {{red|1}}
| {{icon|pop enc}} {{green|+2}} Energy Credits from Technicians
| {{iconify|Planetary Power Grid|24px}}
| ''These devices dramatically reduce power loss during distribution, increasing overall generator output.''
|- id="The Giga-Mall"
| [[File:Orbitalring trade hub.png|链接=Special:FilePath/Orbitalring_trade_hub.png]]|| The Giga-Mall
| 
* {{icon|alloys}} 100
* {{icon|rare crystals}} 100
| 
* {{icon|energy}} {{red|2}}
* {{icon|rare crystals}} {{red|1}}
| 
* {{iconify|Amenities||+1|green}} from Clerks
* {{iconify|Trade Value||+5%|green}}
| {{iconify|Interstellar Economics|24px}}
| ''Moving all shopping and trade facilities to the Orbital Ring means our Clerks can facilitate more business, more effectively than ever before.''
|- id="Alloy Processing Facilities"
| [[File:Orbitalring alloy hub.png|链接=Special:FilePath/Orbitalring_alloy_hub.png]]|| Alloy Processing Facilities
| 
* {{icon|alloys}} 200
* {{icon|volatile motes}} 300
| 
* {{icon|energy}} {{red|5}}
* {{icon|volatile motes}} {{red|2}}
| 
* {{iconify|Alloys||+1|green}} from Metallurgists
* {{icon|minerals}} {{red|-2}} Minerals from Metallurgists
| {{iconify|Nano-Separators|24px}}
| ''Alloys from the surface are further processed in orbit, creating usable materials from what would otherwise be wasted by-products.''
|- id="Orbital Logistics Systems"
| [[File:Orbitalring consumer hub.png|链接=Special:FilePath/Orbitalring_consumer_hub.png]]|| Orbital Logistics Systems
| 
* {{icon|alloys}} 200
* {{icon|rare crystals}} 300
| 
* {{icon|energy}} {{red|5}}
* {{icon|rare crystals}} {{red|2}}
| 
* {{iconify|Consumer Goods||+1|green}} from Artisans
* {{icon|minerals}} {{red|-1}} Minerals from Artisans
| {{iconify|Replicator Kiosks|24px}}
| ''Transferring logistics operations to automated systems on the Orbital Ring allows planetside Factories to run continuously at full speed.''
|- id="Orbital Filing System"
| [[File:Orbitalring bureaucracy hub.png|链接=Special:FilePath/Orbitalring_bureaucracy_hub.png]]|| Orbital Filing System
| 
* {{icon|alloys}} 200
* {{icon|rare crystals}} 300
| 
* {{icon|energy}} {{red|2}}
* {{icon|rare crystals}} {{red|1}}
| {{iconify|Unity||+1|green}} from Bureaucrats, Priests and Telepaths
| {{iconify|Effective Bureaucracy|24px}}
| ''Efficiency and progress can be ours once more, now that our Administrators have near instant access to the paperwork that defines their lives.''
|- id="Synaptic Relays"
| [[File:Orbitalring synapse hub.png|链接=Special:FilePath/Orbitalring_synapse_hub.png]]|| Synaptic Relays
| 
* {{icon|alloys}} 200
* {{icon|exotic gases}} 300
| 
* {{icon|alloys}} {{red|2}}
* {{icon|exotic gases}} {{red|1}}
| {{iconify|Amenities||+1|green}} from Synapse Drones
| {{iconify|Clustered Synapses|24px}}
| ''Portions of the Orbital Ring have been modified to enhance synaptic signals, improving control over drones on the surface.''
|- id="Orbital Maintenance Drops"
| [[File:Orbitalring maintenance hub.png|链接=Special:FilePath/Orbitalring_maintenance_hub.png]]|| Orbital Maintenance Drops
| 
* {{icon|alloys}} 200
* {{icon|exotic gases}} 300
| 
* {{icon|alloys}} {{red|2}}
* {{icon|exotic gases}} {{red|1}}
| {{iconify|Amenities||+1|green}} from Maintenance Drones
| {{iconify|Resource Processing Algorithms|24px}}
| ''Prepackaged pods of maintenance material - and the drones necessary to distribute them - can be dropped from orbit anywhere they are needed, at a moment's notice.''
|}