编辑“巨型结构”

{{version|3.4}}
[[File:Utopia Loading Screen.png|thumb|320px|Humanoid Empire constructing a Dyson Sphere]]

!此wiki中文部分基于3.12!

巨型建筑是在反重力条件下建造的建筑。建造或维修这些非凡的工程杰作既昂贵又耗时，但它们是重要的奇迹，能提供大量收益，显示建造者帝国的技术和经济优势。巨型建筑不能建造在有未调查异常的天体轨道上。

== 建造 ==
建造任何巨型建筑的第一阶段(基址)都需要一艘工程船。如果巨型建筑有多个阶段，后面的阶段则不需要建造飞船。所有巨型建筑都有不同的纹理，这取决于建造或修复它们的帝国。

=== 建造速度提升 ===
有一些方法可以提升巨型建筑的建造速度。考虑到此类工程需要大量时间，这些方法非常可取：
* {{iconify|Master Builders}} 飞升会可提高{{green|+50%}}的建造速度
* {{icon|edict}} 活体金属巨构工程法令可提高{{green|+50%}}的建造速度
* {{icon|edict}} "野望: 建筑复兴"可提高{{green|+50%}}的建造速度
* [[File:R contingency core.png|24px]] 独立的肃正核心遗珍可在启用 10 年内提高 {{green|+300%}} 建造速度

== 超光速巨型结构 ==
{{SVersion|3.4}}
[[File:Distant Stars Loading Screen.png|thumb|300px|Real scale of a Gateway]]
[[File:Hyper relay scale.jpg|thumb|300px|Real scale of a Hyper Relay|链接=Special:FilePath/Hyper_relay_scale.jpg]]
超光速巨型建筑只能建造在星系的边缘，允许舰队穿越到相同的巨型建筑，大大方便了银河系的旅行。它们将与另一个帝国的超光速巨型建筑协同工作，除非关闭边境或帝国之间发生战争。超光速巨型建筑可以在任何还没有这种巨型建筑的星系中建造。与其他超大型建筑不同的是，它们也可以在附属国的星系中建造。

=== 星门 ===
在探索银河系时，帝国可能会发现废弃的星门，这些星门曾经是横跨银河系的庞大网络的一部分。废弃星门的数量可以通过[[Game settings#Game Details|galaxy settings]]来调整。<ref>将废弃星门设置为 0 会阻止星门技术的使用，因为帝国必须发现至少一个星门才能解锁研究。如果设置为 0，繁星门阶起源仍会产生一对废弃星门。

一旦发现废弃星门，{{iconify|Gateway Activation|24px}}技术就会一直有机会出现，从而修复废弃星门。修复废弃星门需要花费 2 年时间和 {{iconify|energy||6000|red}}、{{iconify|alloys||2500|red}}。当银河系中的一个网关首次重新启动时，另一个随机网关也会随之重新启动。

一旦{{iconify|Gateway Activation|24px}}技术被研究出来，{{{iconify|Gateway Construction|24px}}技术就会一直有机会出现，从而可以建造新的网关。建造网关需要花费{{iconify|energy||6000|red}}和{{iconify|alloys||2500|红色}}，耗时3年。升级为全功能网关需要 3 年时间，耗费 {{iconify|alloys||2500|red}} 和 {{iconify|energy||6000|red}}}。

只要边界是开放的，目的地不受敌方帝国控制，星门就可以立即前往任何其他网关。星门通常就像系统之间的超空间航道，战争和贸易可以通过网关进行，但星域不能通过星门进行。

{{expansion|dst}}
[[L-Gate]]是一种特殊类型的星门，拥有与普通星门不同的独立网络。L-星门不是从任何星门跳转到任何星门，而是全部跳转到 L-星团的终端出口系统，然后再从终端出口系统跳转到任何其他 L-星门，只要其边界是开放的，或者你们正在交战。L-星门是通过特殊项目打开的，在此之前，需要研究7个L-星门线索和而且无法建造新的 L-星门。

=== 超空间中继器 ===
{{expansion|ovl}}
一旦{{iconify|Hyper Relays|24px|suf=tech}}技术被研究出来，就可以建造超级中继器，让飞船跳转到邻近星系的超空间中继器，而不是使用现有的超光速航道，从而避免以亚光速穿越星系。超空间中继器的建造只需一个阶段，耗时一年，花费 {{iconify|influence||25|red}}、{{iconify|alloys||500|red}}和{{iconify|rare crystals||100|red}}。超空间中继器链接在星系地图上显示为较粗的超线段。潜在（非活动）链接在星系图上显示为黄色连接。由于边界关闭、战争或中继站被毁，链接可能处于非激活状态。被毁坏的超级中继站可以通过{{iconify|energy||500|red}}、{{iconify|alloys||500|red}}和{{iconify|rare crystals||100|red}}}进行修复，修复时间为6个月。

超级中继器可以根据{{iconify|edict}}和[[Subject empire#Specialized subjects|附属国]]赋予额外效果。超空间中继器法令要求帝国的首都系统是网络的一部分。包括网道主导、网道迁移、网道娱乐，都需要稀有资源和{iconify|unity}作为维护费。而附属国专业化所带来的好处则要求宗主国的首都与附属国的首都之间存在连接。附属国无法从宗主国的网络效应中获益。

超空间中继器可以在星系视图中建造，并会半随机地放置在星系中。在有[[wormholes]]或现有星门的系统中，建议进入星系视图，手动将超级中继器放置在[[wormholes]]或星门附近，以方便旅行。不过，超级中继器无法通过[[wormholes]]或星门进行连接。

== 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.''
|}

== Multi-stage megastructures ==
{{SVersion|3.4}}
Multi-stage megastructures are constructed in multiple stages that require the technology of the same name before they can be constructed. Empires lacking the technology can make use of a multi-stage megastructure which they conquered from another Empire, but they cannot upgrade it before they research the technology. 

Multi-stage megastructures start with a construction site that provides no benefit. However, each subsequent construction phase will bring increasing bonuses, culminating with the end of the megastructure construction. 

Only one multi-stage megastructure may be built in each system. Multi-stage megastructures must be built either over an uninhabitable planet or the central star of the system (with the exception of the Quantum Catapult). There must not be an anomaly present on the planet or star, but an anomaly on another planet or star in the system will not block construction (even for the Ring World).

It is only possible to build, upgrade, or restore one multi-stage megastructure at a time. The limit can be increased by {{green|+1}} with each of the following:
* {{iconify|Master Builders}} ascension perk
* {{icon|edict}} Architectural Renaissance ambition edict
* {{iconify|Research Cooperative||Level 5}} president

Apart from the Ring World, each multi-stage megastructure can only be built once per empire, and cannot be rebuilt if the existing one is lost or destroyed. However, multi-stage megastructures obtained through conquest, as well as ruined ones that were found in the galaxy and then restored, do not count against this limit. A conquered incomplete megastructure can still be upgraded as long as the new owner has the requisite technology.

Ring Worlds can have their habitable segments overrun by a [[Ship#Colossi|Colossus]] as well as [[Crisis]] factions and cannot be repaired again. All multi-stage megastructures can be permanently ruined if the system is destroyed by a Star Eater.
{| class="wikitable mildtable" cellspacing="2" cellpadding="4" 
! width=1% | Megastructure
! Stage
! Production
! Upkeep
! Time
! Cost
! style="width:35%" | Notes
! {{Hover box|Ascension Perk|AP}}
! {{Hover box|Downloadable Content|DLC}}
|- id="Ring World"
| rowspan=6 style="border-top:2px solid black" | '''Ring World'''<br>[[File:Evt Ringworld.png|200px]]
| style="border-top:2px solid black" | '''Site'''
| style="border-top:2px solid black" | None
| style="border-top:2px solid black" | {{icon|energy}} {{red|−5}} 
| style="border-top:2px solid black" | {{icon|time}} {{Hover box|1&#8239;800 days|5 years}}
| style="border-top:2px solid black" | {{icon|influence}} {{red|300}}<br>{{icon|alloys}} {{red|5000}}
| rowspan=6 style="border-top:2px solid black" | 
* Cannot be built around a black hole, or in systems with multiple stars or without planets or asteroids
* Cannot be built if there are habitable planets, including habitats, present
* All habitable segments feature {{iconify|habitability||100%|green}} for all species, can build up to 10 [[Districts#Ring World districts|unique districts]], and have their own unique [[Designation#Ringworld designations|designations]]
* Upon completion of the frame, all planets are removed from the system
* Multiple segments can be built at the same time if the empire has the capacity to work on more than one megastructure simultaneously
| rowspan=6 style="border-top:2px solid black" | {{icon|Galactic Wonders}}
| rowspan=6 style="border-top:2px solid black" | {{icon|utp}}
|- 
| '''Stage I (Frame)'''
| None
| None
| {{icon|time}} {{Hover box|4 800 days|13.3 years}}
| {{icon|alloys}} {{red|10000}}
|- 
| '''Stage II (1 Segment)'''
| [[File:Planet ringworld.png|24px]] {{green|+1}} Habitable Segment
| None
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|alloys}} {{red|10000}}
|- 
| '''Stage III (2 Segments)'''
| [[File:Planet ringworld.png|24px]] {{green|+2}} Habitable Segments
| None
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|alloys}} {{red|10000}}
|- 
| '''Stage IV (3 Segments)'''
| [[File:Planet ringworld.png|24px]] {{green|+3}} Habitable Segments
| None
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|alloys}} {{red|10000}}
|- 
|  '''Stage V (Completed)'''
| [[File:Planet ringworld.png|24px]] {{green|+4}} Habitable Segments
| None
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|alloys}} {{red|10000}}
|- id="Dyson Sphere"
| rowspan=6 style="border-top:2px solid black" | '''Dyson Sphere'''<br>[[File:Evt Dyson Sphere.png|200px]]
| style="border-top:2px solid black" | '''Site'''
| style="border-top:2px solid black" | None
| style="border-top:2px solid black" | {{icon|energy}} {{red|−5}} 
| style="border-top:2px solid black" | {{icon|time}} {{Hover box|1 800 days|5 years}}
| style="border-top:2px solid black" | {{icon|unity}} {{red|1000}}<br>{{icon|alloys}} {{red|5000}}
| rowspan=6 style="border-top:2px solid black" |
* Can only be constructed around regular single stars
* Cannot be built if there are habitable planets or anomalies present
* Upon completion, all rocky planets and moons in the system turn into frozen or cold barren worlds
* If the star has a mining station, it is removed when the megastructure is completed
* If any planet has the ''{{iconify|Terraforming Candidate}}'' modifier, it is removed
| rowspan=6 style="border-top:2px solid black" | {{icon|Galactic Wonders}}
| rowspan=6 style="border-top:2px solid black" | {{icon|utp}}
|- 
| '''Stage I (Frame)'''
| None
| None
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|5000}}<br>{{icon|alloys}} {{red|10000}}
|- 
| '''Stage II (Partial 25%)'''
| {{iconify|Energy||+1000|green}}
| None
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|5000}}<br>{{icon|alloys}} {{red|10000}}
|- 
| '''Stage III (Partial 50%)'''
| {{iconify|Energy||+2000|green}}
| None
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|5000}}<br>{{icon|alloys}} {{red|10000}}
|- 
| '''Stage IV (Partial 75%)'''
| {{iconify|Energy||+3000|green}}
| None
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|5000}}<br>{{icon|alloys}} {{red|10000}}
|- 
| '''Stage V (Completed)'''
| {{iconify|Energy||+4000|green}}
| None
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|5000}}<br>{{icon|alloys}} {{red|10000}}
|- id="Science Nexus"
| rowspan=4 style="border-top:2px solid black"| '''Science Nexus'''<br>[[File:Evt Science Nexus.png|200px]]
| style="border-top:2px solid black" | '''Site'''
| style="border-top:2px solid black" | None
| style="border-top:2px solid black" | {{icon|energy}} {{red|−25}}
| style="border-top:2px solid black" | {{icon|time}} {{Hover box|1 800 days|5 years}}
| style="border-top:2px solid black" | {{icon|unity}} {{red|5000}}<br>{{icon|alloys}} {{red|5000}}
| rowspan=4 style="border-top:2px solid black" | 
* The final stage of a Science Nexus can be upgraded to produce {{green|50}} more {{iconify|Research}} through an event that has a 30% chance to trigger a short time after the Megastructure is finished
| rowspan=4 style="border-top:2px solid black" | 
| rowspan=4 style="border-top:2px solid black" | {{icon|utp}}
|- 
| '''Stage I (Hub)'''
| {{iconify|Research||+100|green}}<br>{{iconify|Research Speed||+5%|green}}
| {{icon|energy}} {{red|−50}}
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|5000}}<br>{{icon|alloys}} {{red|15000}}
|- 
| '''Stage II (Research Wings)'''
| {{iconify|Research||+200|green}}<br>{{iconify|Research Speed||+10%|green}}
| {{icon|energy}} {{red|−75}}
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|5000}}<br>{{icon|alloys}} {{red|15000}}
|- 
| '''Stage III (Completed)'''
| {{iconify|Research||+300|green}}<br>{{iconify|Research Speed||+15%|green}}
| {{icon|energy}} {{red|−100}}
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|5000}}<br>{{icon|alloys}} {{red|15000}}
|- id="Sentry Array"
| rowspan=5 style="border-top:2px solid black"| '''Sentry Array'''<br>[[File:Evt Sentry Array.png|200px]]
| style="border-top:2px solid black" | '''Site'''
| style="border-top:2px solid black" | None
| style="border-top:2px solid black" | {{icon|energy}} {{red|−20}}
| style="border-top:2px solid black" | {{icon|time}} {{Hover box|1 800 days|5 years}}
| style="border-top:2px solid black" | {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|5000}}
| rowspan=5 style="border-top:2px solid black" |
* Until finished, the Sentry Array cannot see through nebulae
* As no system will have low intel level, a completed Sentry Array will prevent space creatures from respawning
| rowspan=5 style="border-top:2px solid black" | 
| rowspan=5 style="border-top:2px solid black" | {{icon|utp}}
|- 
| '''Stage I (Sentry Hub)'''
| {{icon|sensor range}} {{green|+20}} Hyperlane Scanner Range<br>{{iconify|Base intel level||+10|green}}
| {{icon|energy}} {{red|−40}}
| {{icon|time}} {{Hover box|1 800 days|5 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|10000}}
|- 
| '''Stage II (Sentry Spire)'''
| {{icon|sensor range}} {{green|+40}} Hyperlane Scanner Range<br>{{iconify|Base intel level||+20|green}}
| {{icon|energy}} {{red|−60}}
| {{icon|time}} {{Hover box|1 800 days|5 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|10000}}
|- 
| '''Stage III (Sentry Aerials)'''
| {{icon|sensor range}} {{green|+60}} Hyperlane Scanner Range<br>{{iconify|Base intel level||+30|green}}
| {{icon|energy}} {{red|−80}}
| {{icon|time}} {{Hover box|1 800 days|5 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|10000}}
|- 
| '''Stage IV (Completed)'''
| {{icon|sensor range}} {{green|Entire Galaxy}} Hyperlane Scanner Range<br>{{iconify|Base intel level||+40|green}}
| {{icon|energy}} {{red|−100}}
| {{icon|time}} {{Hover box|1 800 days|5 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|10000}}
|- id="Matter Decompressor"
| rowspan=5 style="border-top:2px solid black"| '''Matter Decompressor'''<br>[[File:Evt Matter Decompressor.png|200px]]
| style="border-top:2px solid black" | '''Site'''
| style="border-top:2px solid black" | None
| style="border-top:2px solid black" | {{icon|energy}} {{red|−5}}
| style="border-top:2px solid black" | {{icon|time}} {{Hover box|1 800 days|5 years}}
| style="border-top:2px solid black" | {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|5000}}
| rowspan=5 style="border-top:2px solid black" |
* Can only be constructed around black holes
* Cannot be built if there are habitable planets or anomalies present
* If the black hole has a research station, it is removed when the megastructure is completed
| rowspan=5 style="border-top:2px solid black" | {{icon|Galactic Wonders}}
| rowspan=5 style="border-top:2px solid black" | {{icon|mgc}}
|- 
| '''Stage I (Anchor)'''
| {{iconify|Minerals||+500|green}}
| {{icon|energy}} {{red|−25}}
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|5000}}<br>{{icon|alloys}} {{red|12500}}
|- 
| '''Stage II (Lensing)'''
| {{iconify|Minerals||+1000|green}}
| {{icon|energy}} {{red|−50}}
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|5000}}<br>{{icon|alloys}} {{red|12500}}
|- 
| '''Stage III (Boring)'''
| {{iconify|Minerals||+1500|green}}
| {{icon|energy}} {{red|−75}}
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|5000}}<br>{{icon|alloys}} {{red|12500}}
|- 
| '''Stage IV (Completed)'''
| {{iconify|Minerals||+2000|green}}
| {{icon|energy}} {{red|−100}}
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|5000}}<br>{{icon|alloys}} {{red|12500}}
|- id="Mega Art Installation"
| rowspan=5 style="border-top:2px solid black"| '''Mega Art Installation'''<br>[[File:Evt Mega Art Installation.png|200px]]
| style="border-top:2px solid black" | '''Site'''
| style="border-top:2px solid black" | None
| style="border-top:2px solid black" | {{icon|energy}} {{red|−5}}
| style="border-top:2px solid black" | {{icon|time}} {{Hover box|1 800 days|5 years}}
| style="border-top:2px solid black" | {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|5000}}
| rowspan=5 style="border-top:2px solid black" | 
* The final stage requires the {{iconify|Ancient Relics}} DLC
* A ruined Mega Art Installation will be repaired to stage 3, and can be upgraded to stage 4 as with the constructed version
| rowspan=5 style="border-top:2px solid black" | 
| rowspan=5 style="border-top:2px solid black" | {{icon|mgc}}
|- 
| '''Stage I (Nascency)'''
| {{iconify|Unity||+100|green}}<br>{{iconify|Amenities||+5%|green}}
| {{icon|energy}} {{red|−10}}
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|15000}}
|- 
| '''Stage II (Maturity)'''
| {{iconify|Unity||+200|green}}<br>{{iconify|Amenities||+10%|green}}
| {{icon|energy}} {{red|−20}}
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|15000}}
|- 
| '''Stage III (Completed)'''
| {{iconify|Unity||+300|green}}<br>{{iconify|Amenities||+15%|green}}
| {{icon|energy}} {{red|−30}}
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|15000}}
|- 
| '''Stage IV (Perfection)'''
| {{iconify|Unity||+400|green}}<br>{{iconify|Amenities||+20%|green}}
| {{icon|energy}} {{red|−30}}
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|minor artifacts}} {{red|100}}
|- id="Strategic Coordination Center"
| rowspan=4 style="border-top:2px solid black"| '''Strategic Coordination Center'''<br>[[File:Evt Strategic Coordination Center.png|200px]]
| style="border-top:2px solid black" | '''Site'''
| style="border-top:2px solid black" | None
| style="border-top:2px solid black" | {{icon|energy}} {{red|−5}}
| style="border-top:2px solid black" | {{icon|time}} {{Hover box|1 800 days|5 years}}
| style="border-top:2px solid black" | {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|5000}}
| rowspan=4 style="border-top:2px solid black" | 
| rowspan=4 style="border-top:2px solid black" | 
| rowspan=4 style="border-top:2px solid black" | {{icon|mgc}}
|- 
| '''Stage I (Hull)'''
| {{iconify|Naval capacity||+50|green}}<br>{{iconify|Starbase capacity||+2|green|suf=add}}<br>[[File:Mod starbase defense platform capacity mult.png|24px|link=Starbase#Defenses|Defense platform cap]] {{green|+4}} Defense Platforms<br>{{iconify|Sublight speed||+5%|green}}
| {{icon|energy}} {{red|−25}}
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|15000}}
|- 
| '''Stage II (Comms)'''
| {{iconify|Naval capacity||+100|green}}<br>{{iconify|Starbase capacity||+4|green|suf=add}}<br>[[File:Mod starbase defense platform capacity mult.png|24px|link=Starbase#Defenses|Defense platform cap]] {{green|+8}} Defense Platforms<br>{{iconify|Sublight speed||+10%|green}}
| {{icon|energy}} {{red|−50}}
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|15000}}
|- 
| '''Stage III (Completed)'''
| {{iconify|Naval capacity||+150|green}}<br>{{iconify|Starbase capacity||+6|green|suf=add}}<br>[[File:Mod starbase defense platform capacity mult.png|24px|link=Starbase#Defenses|Defense platform cap]] {{green|+12}} Defense Platforms<br>{{iconify|Sublight speed||+15%|green}}
| {{icon|energy}} {{red|−75}}
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|15000}}
|- id="Interstellar Assembly"
| rowspan=5 style="border-top:2px solid black"| '''Interstellar Assembly'''<br>[[File:Evt Interstellar Assembly.png|195px]]
| style="border-top:2px solid black" | '''Site'''
| style="border-top:2px solid black" | None
| style="border-top:2px solid black" | {{icon|energy}} {{red|−5}}
| style="border-top:2px solid black" | {{icon|time}} {{Hover box|1 800 days|5 years}}
| style="border-top:2px solid black" | {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|5000}}
| rowspan=5 style="border-top:2px solid black" |
| rowspan=5 style="border-top:2px solid black" | 
| rowspan=5 style="border-top:2px solid black" | {{icon|mgc}}
|- 
| '''Stage I (Locus)'''
| {{icon|diplo weight mult}} {{green|+10%}} Diplomatic weight<br>{{iconify|Opinion||+10|green}} from all empires
| {{icon|energy}} {{red|−10}}
| {{icon|time}} {{Hover box|1 800 days|5 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|10000}}
|- 
| '''Stage II (Consul Ring)'''
| {{icon|diplo weight mult}} {{green|+20%}} Diplomatic weight<br>{{iconify|Opinion||+20|green}} from all empires<br>{{iconify|Available envoys||+1|green}}
| {{icon|energy}} {{red|−20}}
| {{icon|time}} {{Hover box|1 800 days|5 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|10000}}
|- 
| '''Stage III (Forum Modules)'''
| {{icon|diplo weight mult}} {{green|+30%}} Diplomatic weight<br>{{iconify|Opinion||+30|green}} from all empires<br>{{iconify|Available envoys||+1|green}}
| {{icon|energy}} {{red|−30}}
| {{icon|time}} {{Hover box|1 800 days|5 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|10000}}
|- 
| '''Stage IV (Completed)'''
| {{icon|diplo weight mult}} {{green|+40%}} Diplomatic weight<br>{{iconify|Opinion||+50|green}} from all empires<br>{{iconify|Available envoys||+2|green}}
| {{icon|energy}} {{red|−40}}
| {{icon|time}} {{Hover box|1 800 days|5 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|10000}}
|- id="Mega Shipyard"
| rowspan=4 style="border-top:2px solid black" | '''Mega Shipyard'''<br>[[File:Evt Megashipyard.png|195px]]
| style="border-top:2px solid black" | '''Site'''
| style="border-top:2px solid black" | None
| style="border-top:2px solid black" | {{icon|energy}} {{red|−5}} 
| style="border-top:2px solid black" | {{icon|time}} {{Hover box|1&#8239;800|5 years}}
| style="border-top:2px solid black" | {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|3000}}
| rowspan=4 style="border-top:2px solid black" | 
* All ships start with 100 experience
* Can only be built around stars, in one-star systems
| rowspan=4 style="border-top:2px solid black" | 
| rowspan=4 style="border-top:2px solid black" | {{icon|fed}}
|- 
| '''Stage I (Framework)'''
| [[File:Sb shipyard.png|24px]] {{green|+5}} Shipyard Capacity<br>{{icon|ship build speed}} {{green|+33%}} Empire Ship Build Speed
| {{icon|energy}} {{red|−10}}
| {{icon|time}} {{Hover box|1&#8239;800|5 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|10000}}
|- 
| '''Stage II (Core)'''
| [[File:Sb shipyard.png|24px]] {{green|+10}} Shipyard Capacity<br>{{icon|ship build speed}} {{green|+66%}} Empire Ship Build Speed
| {{icon|energy}} {{red|−20}}
| {{icon|time}} {{Hover box|1&#8239;800|5 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|10000}}
|- 
| '''Stage III (Complete)'''
| [[File:Sb shipyard.png|24px]] {{green|+20}} Shipyard Capacity<br>{{icon|ship build speed}} {{green|+100%}} Empire Ship Build Speed<br>[[File:sb colossus assembly yard.png|24px]] Titan, Colossus, and Juggernaut construction
| {{icon|energy}} {{red|−40}}
| {{icon|time}} {{Hover box|1&#8239;800|5 years}}
| {{icon|unity}} {{red|2500}}<br>{{icon|alloys}} {{red|10000}}
|- id="Quantum Catapult"
| rowspan=6 style="border-top:2px solid black"| '''Quantum Catapult'''<br>[[File:Evt quantum catapult.png|195px|链接=Special:FilePath/Evt_quantum_catapult.png]]
| style="border-top:2px solid black" | '''Site'''
| style="border-top:2px solid black" | None
| style="border-top:2px solid black" | {{icon|energy}} {{red|−5}}
| style="border-top:2px solid black" | {{icon|time}} {{Hover box|1&#8239;800|5 years}}
| style="border-top:2px solid black" | {{icon|influence}} {{red|300}}<br>{{icon|alloys}} {{red|5000}}
| rowspan=4 style="border-top:2px solid black" | 
* Can only be constructed around pulsars and neutron stars (including in binary or trinary systems)
* The accuracy of the catapult decreases with distance and is increased by upgrading the megastructure
| rowspan=6 style="border-top:2px solid black" | 
| rowspan=6 style="border-top:2px solid black" | {{icon|ovl}}
|- 
| '''Stage I (4 lenses)'''
| [[File:Fleet_action_button_quantum_catapult.png|24px|链接=Special:FilePath/Fleet_action_button_quantum_catapult.png]] {{Hover box|Distance: 200; Base spread: 60|Can catapult fleets in the system}}<br>{{icon|disengagement chance}} {{green|−10%}} Missing in Action time (requires Hyper Relays)
| {{icon|energy}} {{red|−10}}
| {{icon|time}} {{Hover box|1 800 days|5 years}}
| {{icon|alloys}} {{red|10000}}
|- 
| '''Stage II (8 lenses)'''
| [[File:Fleet_action_button_quantum_catapult.png|24px|链接=Special:FilePath/Fleet_action_button_quantum_catapult.png]] {{Hover box|Distance: 350; Base spread: 45|Can catapult fleets in the system}}<br>{{green|−25%}} Catapult windup time<br>{{icon|disengagement chance}} {{green|−20%}} Missing in Action time (requires Hyper Relays)
| {{icon|energy}} {{red|−20}}
| {{icon|time}} {{Hover box|1 800 days|5 years}}
| {{icon|alloys}} {{red|10000}}
|- 
| '''Stage III (Complete)'''
| [[File:Fleet_action_button_quantum_catapult.png|24px|链接=Special:FilePath/Fleet_action_button_quantum_catapult.png]] {{Hover box|Distance: 500; Base spread: 30|Can catapult fleets in the system}}<br>{{green|−50%}} Catapult windup time<br>{{icon|disengagement chance}} {{green|−30%}} Missing in Action time (requires Hyper Relays)
| {{icon|energy}} {{red|−30}}
| {{icon|time}} {{Hover box|1 800 days|5 years}}
| {{icon|alloys}} {{red|10000}}
|-
|[[File:Origins slingshot to the stars.png|24px|链接=Special:FilePath/Origins_slingshot_to_the_stars.png]] '''Restored (8 Lenses)'''
|[[File:Fleet_action_button_quantum_catapult.png|24px|链接=Special:FilePath/Fleet_action_button_quantum_catapult.png]] {{Hover box|Distance: 300; Base spread: 50|Can catapult fleets in the system}}<br>{{icon|disengagement chance}} {{green|−20%}} Missing in Action time (requires Hyper Relays)
|{{icon|energy}} {{red|−20}}
|{{icon|time}} {{Hover box|3 600 days|10 years}}
|{{icon|alloys}} {{red|2500}}
| rowspan="2" |
* Must be restored from the ruined catapult spwned by the [[File:Origins slingshot to the stars.png|24px|链接=Special:FilePath/Origins_slingshot_to_the_stars.png]] Slingshot to the Stars origin
* Any [[File:Origins slingshot to the stars.png|24px|链接=Special:FilePath/Origins_slingshot_to_the_stars.png]] Slingshot to the Stars empire can restore the special catapult without {{iconify|Mega-Engineering|24px}}, but requires that technology to improve the catapult; restoring the catapult also unlocks the {{iconify|Quantum Catapult|24px|suf=tech}} technology.
* Other empires can restore the special catapult with {{iconify|Mega-Engineering|24px}}
|-
|[[File:Origins slingshot to the stars.png|24px|链接=Special:FilePath/Origins_slingshot_to_the_stars.png]] '''Improved (Complete)'''
|[[File:Fleet_action_button_quantum_catapult.png|24px|链接=Special:FilePath/Fleet_action_button_quantum_catapult.png]] {{Hover box|Distance: 500; Base spread: 30|Can catapult fleets in the system}}<br>{{icon|disengagement chance}} {{green|−30%}} Missing in Action time (requires Hyper Relays)
|{{icon|energy}} {{red|−40}}
|{{icon|time}} {{Hover box|3 600 days|10 years}}
|{{icon|alloys}} {{red|15000}}
|}

=== Ruined megastructures ===
[[File:ruined dyson sphere.png|thumb|310px|Ruined Dyson Sphere]]
A ruined version of a multi-stage megastructure can be found while exploring the galaxy, with larger galaxies having a chance to spawn more ruined megastructures. Repairing them only requires the {{iconify|Mega-Engineering|24px}} technology. If not yet researched, owning a system with a ruined megastructure also grants a ×20 weight for Mega-Engineering to appear. 

While they upgrade from their broken to a fully functional state in one step, they do not count for any achievements. However, they do not count against any build limit for that particular megastructure, either.
{| class="mildtable plainlist"
! Ruined Megastructure !! {{iconify|Time}} !! {{iconify|Alloys}} !! System notes
|- 
| {{icon|utp}} Dyson Sphere || {{hover|20 years|7200}} || 20000 || 
|- 
| {{icon|utp}} Science Nexus || {{hover|13.3 years|4800}} || 15000 ||
|- 
| {{icon|utp}} Sentry Array || {{hover|13.3 years|4800}} || 15000 || Contains a Tomb World
|- 
| {{icon|mgc}} Matter Decompressor || {{hover|13.3 years|4800}} || 20000 || 
|- 
| {{icon|mgc}} Mega Art Installation || {{hover|13.3 years|4800}} || 20000 || Is always a trinary system
|- 
| {{icon|mgc}} Strategic Coordination Center || {{hover|13.3 years|4800}} || 15000 || 
|- 
| {{icon|mgc}} Interstellar Assembly || {{hover|10 years|3600}} || 15000 || Contains deposits on most celestial bodies
|- 
| {{icon|fed}} Mega Shipyard || {{hover|10 years|3600}} || 10000 || 
|-
| {{icon|ovl}} Quantum Catapult || {{hover|10 years|3600}} || 10000 || Is always a pulsar system
|-
| [[File:Origins slingshot to the stars.png|26px|链接=Special:FilePath/Origins_slingshot_to_the_stars.png]] Quantum Catapult ||{{hover|10 years|3600}} || 2500 || Is always a pulsar system next to the origin homeworld
|}
Empires with the [[File:Origins slingshot to the stars.png|24px|链接=Special:FilePath/Origins_slingshot_to_the_stars.png]] Slingshot to the Stars origin can repair the special Quantum Catapult without the {{iconify|Mega-Engineering|24px}} technology.

=== Conquerable Ringworlds ===
Up to 8 ringworlds can spawn naturally in a game in various states. Damaged segments can be repaired with the {{iconify|Mega-Engineering|24px}} technology for the same cost as finishing a new segment.
* 1 in the [[Sanctuary]] system. All 4 habitable sections are intact and each contains one pre-FTL civilization, none advanced beyond Steam Age. The system was abandoned by an Enigmatic Observer Fallen Empire but contains automated defense platforms totaling over 50k [[Space_warfare#Combat|fleet power]].
* 1 in the [[Exploration#Cybrex|Cybrex Alpha]] system. It requires completing the Cybrex precursor event chain. The ringworld is completely ruined and requires repairs on each section.
* 1 in the [[Crisis#The Cybrex|Cybrex Beta]] system. It will only be revealed if [[the Contingency]] sterilizes 20% of the galaxy. A short time after the Contingency is defeated, the Cybrex will leave the galaxy, leaving the ringworld free for the taking.
* 1 in a random empty system if the {{iconify|Utopia}} DLC is enabled. It is completely ruined and each section requires repairing. If the {{iconify|Distant Stars}} DLC is enabled as well, the system has a 50% chance to contain a unique anomaly.
* 3 in the systems of the [[Ancient Caretakers]] if the {{iconify|Synthetic Dawn}} DLC is enabled. The ringworld in the home system has 3 intact and one ruined section, while the other two ringworlds are completely ruined and require each section to be repaired separately. If the Contingency appears and the Ancient Caretakers awaken to defend the galaxy, they will also disappear like the Cybrex once the Contingency is defeated, leaving their systems free for the taking.
* Each empire with the {{iconify|Shattered Ring}} origin starts in a ringworld system with an intact segment and two damaged ones. By default only one empire with the origin can be generated, but force-spawning will ignore the limit.

=== Aetherophasic Engine ===
{{expansion|nem}}
The Aetherophasic Engine is a megastructure that will appear in the capital system of every empire that reaches the final [[Crisis#Galactic_Nemesis|crisis]] level. Each stage of the megastructure requires gargantuan amounts of {{iconify|dark matter}} as well as 10 years to upgrade. If the system is conquered by another empire, the megastructure is ruined and can be repaired if the original empire reclaims it.
{| class="mildtable plainlist" style="text-align: center;
! Stage
! {{iconify|Energy}}
! {{iconify|Minerals}}
! {{iconify|Naval capacity}}
! {{iconify|Opinion}}
! {{iconify|Dark matter}} required
! Reward if conquered
! Effects
|-
| I
| {{green|+100}}
| {{green|+250}}
| {{green|+100}}
| 0
| 0
| style="text-align: left; | 
* {{iconify|Influence||200|green}} if not crisis level 5
* {{iconify|Alloys||5000|green}} if not crisis level 5
* {{iconify|Dark matter||10000|green}} if crisis level 5
| style="text-align: left; | None
|-
| II
| {{green|+200}}
| {{green|+500}}
| {{green|+150}}
| 0
| 20000
| style="text-align: left; | 
* {{iconify|Influence||300|green}} if not crisis level 5
* {{iconify|Alloys||7500|green}} if not crisis level 5
* {{iconify|Dark matter||15000|green}} if crisis level 5
| style="text-align: left; | Entering the Shroud displays a new set of messages
|-
| III
| {{green|+400}}
| {{green|+1000}}
| {{green|+200}}
| {{red|-1000}}
| 30000
| style="text-align: left; | 
* {{iconify|Influence||400|green}} if not crisis level 5
* {{iconify|Alloys||10000|green}} if not crisis level 5
* {{iconify|Dark matter||20000|green}} if crisis level 5
| style="text-align: left; | 
* Within 1-2 years, 5% of the owned systems will be invaded by shroud avatars
|-
| IV
| {{green|+800}}
| {{green|+2000}}
| {{green|+250}}
| {{red|-1000}}
| 40000
| style="text-align: left; | 
* {{iconify|Influence||600|green}} if not crisis level 5
* {{iconify|Alloys||15000|green}} if not crisis level 5
* {{iconify|Dark matter||30000|green}} if crisis level 5
| style="text-align: left; | 
* Within 1-2 years, 10% of the owned systems will be invaded by shroud avatars
* Up to 6 pops with the {{iconify|psionic}} trait die
* Up to 2 leaders with the {{iconify|psychic}} trait die
|-
| V
| -
| -
| -
| -
| 50000
| -
| style="text-align: left; | 
* {{green|Game victory}}
* '''The galaxy is destroyed'''
|}

<references />
{{ConceptsNavbox}}
[[Category:游戏概念]]
[[Category:巨型结构]]
[[en:Megastructures]]