Difference between revisions of "Megastructures"

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m (replaced: {{SVersion|1.8}} → {{SVersion|1.9}} (6))
(Gateways: +info about wormholes and sectors; pls check and rephrase better if you can)
 
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{{version|1.9}}
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{{version|2.7}}
[[File:Utopia Loading Screen.png|thumb|350px|Humanoid Empire constructing a Dyson Sphere]]
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[[File:Utopia Loading Screen.png|thumb|320px|Humanoid Empire constructing a Dyson Sphere]]
{{expansion|utp|small=no}}
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Megastructures are colossal constructions. Expensive and time-consuming to build or repair, these remarkable feats of engineering are nonetheless important wonders that provide large bonuses, demonstrating the technological and economic primacy of the builders' empire.
{{hatnote|'''Note:''' Ringworlds can be restored even without Utopia enabled.}}
 
''Megastructures'' are colossal object constructions. Expensive and time-consuming, these remarkable feats of engineering are nonetheless important wonders that provide large bonuses, demonstrating the technological and economical primacy of the builders' empire.
 
  
It is possible to find ruined megastructures spread in the galaxy to repair and restore them into their final form. Doing so allows saving a lot of the resources required to construct them. While restoring the megastructures does not require any {{iconify|ascension perk|21px}}s, it does require the player having researched the technology {{icon|Mega Engineering|21px}} {{tech|rare|Mega Engineering}}.
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== Construction ==
 +
A construction ship is required to build the first stage (construction site) of any megastructure. If it has multiple stages, the following stages do not require a construction ship. All megastructures have a different textures depending on the empire that built or repaired them.
  
There are two types of megastructures. Habitable projects and Galactic Wonders. Galactic Wonders provide massive bonuses and cannot be destroyed by any crisis but are limited to one per empire. They also have a different texture depending on the empire that built them.
+
=== Construction Speed Bonuses ===
 +
A few bonuses affect megastructure construction speed. These are highly desirable considering the great time requirements of such projects:
 +
* [[File:ap master builders.png|link=Ascension perk|Master Builders|21px]] Master Builders ascension perk increases the build speed by {{green|+50%}}
 +
* {{icon|edict}} Living Metal Mega-Construction edict increases the build speed by {{green|+50%}}
 +
* {{icon|edict}} Architectural Renaissance unity ambition also increases the build speed by {{green|+50%}}
 +
* [[File:R contingency core.png|24px]] Using the Isolated Contingency Core relic greatly increases the build speed by {{green|+300%}} for 10 years
  
It is only possible to build, upgrade, or restore one megastructure at a time, except in the case of habitats.
+
== Gateways ==
 +
{{SVersion|2.7}}
 +
[[File:Distant Stars Loading Screen.png|thumb|320px|Real scale of a Gateway]]
 +
While exploring the galaxy, empires can find abandoned gateways that were once part of a massive, galaxy-spanning network. The number of abandoned gateways can be scaled by galaxy settings. Owning a system with an inactive Gateway drastically increases the chance for the {{iconify|Gateway Activation|21px}} technology to appear, which is required to reactivate them.
  
== Ascension Perks ==
+
Reactivation of an abandoned gateway takes 2 years and costs {{red|6000}} {{iconify|energy}} and {{red|2500}} {{iconify|alloys}}. When a Gateway is reactivated for the first time in the galaxy, another random Gateway will also reactivate along with it.
A number of [[Ascension Perks]] enable or affect the building of Megastructures.
 
  
=== Voidborne ===
+
Empires can build their own Gateways by researching the {{iconify|Gateway Construction|21px}} technology, which requires the Empire to have encountered any pre-existing Gateways, so if Gateways were disabled during [[galaxy]] creation, it is impossible to build any new.
This Perk enables the building of Habitats. It has significantly lower requirements than the perk for the other Megastructures, requiring only some of the prerequisites of {{iconify|Mega Engineering|21px}} rather than the tech itself.
 
  
=== Galactic Wonders ===
+
Each system can only have one Gateway. They can be constructed even in a system with an [[L-Gate]] or a [[wormhole]]. The construction site must be built outside the system gravity well and is built in 3 years and costs {{red|100}} {{iconify|influence}} and {{red|2500}} {{iconify|alloys}}. Upgrading it into a fully functional Gateway takes 5 years and costs {{red|6000}} {{iconify|energy}} and {{red|2500}} {{iconify|alloys}}.
Requires {{iconify|Mega Engineering|21px}} and three previous ascension perks. Enables the Dyson Sphere, Science Nexus and Sentry Array. What each of these Megastructures have in common is that they provide effects and bonuses without any of the disadvantages associated with a colonized planet and their presence in a system is not incompatible with habitats.
 
  
=== Circle of Life ===
+
Gateways can't be used to travel to another Gateway if the later is owned by an Empire that has closed their border to them. Regular Empires cannot close their borders to Fallen Empires, meaning that their Gateways can always be accessed by the Fallen Empires. Systems with gateways count as bordering for the purposes of [[Exploration#The_L-Cluster|diplomacy]], so every opened gate increases diplomatic tension between all active gate-owners. [[Claims]] cannot be extended through gateways. [[Sectors]] don't extend through gateways. Additionally, gateways are able to greatly enhance and simplify [[trade]] infrastructure.
Requires {{iconify|Mega Engineering|21px}}, [[File:ap voidborn.png|link=Ascension perk|Voidborne|21px]] Voidborne and three previous ascension perks. Enables the construction of Ringworlds. They offer extreme living space at higher efficiency than Habitats. However the system they are built in must be devoid of habitable planets as in the construction of the ringworld all planets will be destroyed to supply the materials. You can build an infinite number of these.
 
  
=== Master Builders ===
+
Gateways can't be deactivated or destroyed once they are fully activated or constructed.
[[File:ap master builders.png|link=Ascension perk|Master Builders|21px]] Master Builders will increase the buildspeed of Megastructures by {{green|+100%}}. It requires {{iconify|Zero Point Power|21px}} and instantly unlocks {{iconify|Mega Engineering|21px}} if not unlocked already.
 
  
 
== Habitats ==
 
== Habitats ==
{{SVersion|1.9}}
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{{SVersion|2.7}}
[[File:Mammalian Habitat.jpg|thumb|200px|Mammalian habitat.]]
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{{expansion|utp|fed}}
An artificial planet in all but name, these '''Habitats''' offer 12 tiles to work coupled with {{green|100%}} {{iconify|habitability}} for all species. Its appearance is dependent on the builders' empire appearance. The constructed habitat still requires colonization but colonizing them is free.
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[[File:Mammalian Habitat.png|thumb|Mammalian size 8 habitat]]
 +
Artificial planets in all but name, habitats have a {{green|70%}} {{icon|habitability}} Base Habitability for all species that can be built above planets. Habitats have a unique set of [[Districts#Habitat districts|Districts]] distinct from normal planetary ones. Up to 3 Districts are shared among all Habitats, with a fourth one being available if the Habitat is built above a planet with a resource deposit. Its appearance is dependent on the builders' empire appearance. They still requires [[colonization]] but the colony develops 3 times faster on a Habitat.
  
Habitats have a [[Buildings#Habitat|unique set of buildings]] distinct from normal planetary ones. This set of buildings has good {{iconify|Energy}} and {{iconify|research}} yields, but is less effective for generating {{iconify|Food}} and {{iconify|Minerals}}. Gene Clinics, tradition and Horizon Signal buildings can also be constructed.
+
Habitats can be researched and built by any empire if {{iconify|Utopia}} DLC is installed. Otherwise, it's only available to empires with the {{iconify|Void Dwellers}} origin, which requires the {{iconify|Federations}} DLC.
  
The project takes {{red|5}} years to complete and costs a total of {{red|150}} {{iconify|influence}} and {{red|5000}} {{iconify|minerals}}.  
+
Habitats can be built by a construction ship around any regular Planet without an [[anomaly]]. Unlike other megastructures, habitats do not require a construction site and are finished in one go by the construction ship. Habitats start from 4 size, which means they can hold up to 4 districts. They can be upgraded via Decisions once all district slots were filled, and goes up to 8 size.
  
Requires the [[File:ap voidborn.png|link=Ascension perk|Voidborne|21px]] Voidborne ascension perk, which does not require Mega Engineering, only the Battleship and Fortress technologies.
+
{| class="mildtable"
It cannot be built on habitable planets, asteroids, moons or planets with an anomaly.
+
! Size
 +
! Cost
 +
! Time
 +
! Housing buildings
 +
! Required technology
 +
|-
 +
| 4
 +
| {{icon|influence}} 150<br>{{icon|alloys}} 1500
 +
| 1800 days
 +
| {{iconify|Gestalt Consciousness}} only
 +
| [[File:Tech habitat.png|24px]] Orbital Habitats
 +
|-
 +
| 6
 +
| {{icon|alloys}} 1000
 +
| 720 days
 +
| {{icon|yes}}
 +
| [[File:Tech habitat 2.png|24px]] Habitat Expansion
 +
|-
 +
| 8
 +
| {{icon|alloys}} 1500
 +
| 1440 days
 +
| {{icon|yes}}
 +
| [[File:Tech habitat 3.png|24px]] Advanced Space Habitation
 +
|}
  
While habitats cannot be destroyed by normal empires there is a war demand to disassemble them.
+
In addition, the [[File:ap voidborn.png|link=Ascension perk|Voidborne|21px]] Voidborne Ascension Perk increases their {{iconify|Habitability}} by {{green|+20%}} (resulting in {{green|90%}} Habitability without other modifiers) and unlock {{green|2}} building slots.
  
=== Strategy ===
+
Habitats can be overrun by a [[Ship#Colossi|Colossus]] as well as [[Crisis]] factions and cannot be rebuilt once destroyed.
Habitats have considerable production penalties for both Minerals and Unity, as they effectively act as a rather small planet. However, they offer superior Energy and Science income, while doubling as an Orbital Farm. They also require considerably less micromanagement, because none of the buildings need upgrades nor provide adjacency bonuses. Of all the megastructures, they have the least onerous requirements in terms of technology and placement.
 
  
Habitats are uninhabited when they are built and need to be colonized although this does not require influence like planets do. They will also inherit orbital tile deposits from their orbiting planet.
+
== Multi-stage megastructures ==
 +
{{SVersion|2.7}}
 +
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 use it if they conquered one from another Empire, but they cannot upgrade it before they researched the technology. They 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. Habitats and gateways can be built in the same system as multi-stage megastructures.
  
If a habitat is disassembled, it will strangely never be possible to build another habitat, or even a mining/research station, orbiting the planet, so any strategic resource on the planet is permanently lost. What's more, habitats can't have spaceports, so if an empire has only habitats and no planets, it will never be able to build ships.
+
It is only possible to build, upgrade, or restore one multi-stage megastructures at a time. The limit can be increased by {{green|+1}} for each of the following:
 +
* [[File:Ap master builders.png|24px]] Master Builders ascension perk
 +
* {{icon|edict}} Architectural Renaissance ambition edict
 +
* {{icon|research cooperative}} Level 5 Research Cooperative president
  
== Ringworlds ==
+
Multi-stage megastructures can only be built once per Empire and cannot be rebuilt if the existing one is lost control of, except for the Ring World. However, the ones conquered from other Empires as well as the ruined and restored ones found in the galaxy do not count against the limit. A system can also only host one of them.
{{SVersion|1.9}}
 
[[File:Ring World.jpg|thumb|200px|Ring world.]]
 
Immense in both radius and scope, these '''Ringworlds''' encircle their system's sun and award their owner four {{green|25 tile sized}} sections when fully constructed. Its carefully designed ecosystem and finely-tuned atmosphere offer perfect living conditions towards all residing species, giving them {{green|100%}} {{iconify|habitability}} on the ringworld.
 
  
The project takes {{red|58⅓}} years to complete and costs a grand total of {{red|300}} {{iconify|influence}} and {{red|110 000}} {{iconify|minerals}}. With the [[File:ap master builders.png|link=Ascension perk|21px]] Master Builder ascension perk it takes {{red|29⅙}} years instead. However, because each section is built separately after the completion of the frame, the Ringworld can be a valuable and productive asset long before its completion.
+
Ring Worlds can have their habitable segments overran by a [[Ship#Colossi|Colossus]] as well as [[Crisis]] factions and cannot be repaired again. Other multi-stage megastructures can't be destroyed or deactivated.
  
The initial site is built by a construction ship around the star, and cannot be begun if another construction ship is building a megastructure or if the system contains habitable planets. Once the site is complete, it constructs the subsequent sections without the need for a construction ship.
+
{| class="wikitable mildtable" cellspacing="2" cellpadding="4" width="100%"
 
+
! style="width:1%" | Megastructure
Ringworlds cannot be built around black holes. All planets in the system are consumed upon the completion of one of its frame.
+
! Stage
 
+
! Production
Requires the [[File:ap the circle of life.png|link=Ascension perk|21px]] The Circle of Life ascension perk. The following list shows the upgrade order.
+
! Upkeep
 
+
! Time
{| class="mildtable sortable" cellspacing="2" cellpadding="4" width="100%"
+
! Cost
! style="width:25%" colspan=2 | Type
+
! style="width:30%" | Notes
! style="width:25%" class="unsortable" | Upkeep
+
! AP
! style="width:25%" class="unsortable" | Time
+
! DLC
! style="width:25%" class="unsortable" | Cost
+
|-
|- id="Ring World Site"
+
| rowspan=6 style="vertical-align:top;border-top:2px solid black" | '''Ring World'''<br>[[File:Evt Ringworld.png|200px]]
| style="width:1%" | [[File:Ring World Site.png|100px]]
+
| style="border-top:2px solid black" | '''Site'''
| '''Site'''
+
| style="border-top:2px solid black" | None
| {{red|-5}} {{icon|energy}}
+
| style="border-top:2px solid black" | {{icon|energy}} {{red|-5}}  
| {{Hover box|5 years|1 800}} {{icon|time}}
+
| style="border-top:2px solid black" | {{icon|time}} {{Hover box|1&#8239;800|5 years}}
| {{red|300}} {{icon|influence}}<br>{{red|10 000}} {{icon|minerals}}
+
| style="border-top:2px solid black" | {{icon|influence}} {{red|300}}<br>{{icon|alloys}} {{red|5000}}
|- id="Ring World Frame"
+
| rowspan=6 style="border-top:2px solid black" |
| style="width:1%" | [[File:Ringworld frame.png|100px]]
+
* Cannot be built in systems with black holes or multiple stars
| '''Frame'''
+
* Cannot be built if there are habitable planets, anomalies or stations present
 +
* All habitable segments feature {{green|+100%}} {{icon|Habitability}} Fixed Habitability for each species, can build up to 5 [[Districts#Ring World districts|unique Districts]] and have their own unique Designations
 +
* If built in the L-Cluster the uninhabitable segments may have {{iconify|Nanites}} deposits
 +
* 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" | [[Image:ap galactic wonders.png|24px|link=Traditions#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
 
| None
| {{Hover box|13 years and 4 months|4 800}} {{icon|time}}
+
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{red|20 000}} {{icon|minerals}}
+
| {{icon|alloys}} {{red|10000}}
|- id="Ring World Section"
+
|-  
| style="width:1%" | [[File:Ring World Habitable.png|100px]]
+
| '''Stage IV (3 Segments)'''
| '''Completed Section'''
+
| [[File:Planet ringworld.png|24px]] {{green|+3}} Habitable Segments
 
| None
 
| None
| {{Hover box|10 years|3 600}} {{icon|time}}
+
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{red|20 000}} {{icon|minerals}}
+
| {{icon|alloys}} {{red|10000}}
|-
+
|-  
|}
+
| '''Stage V (Completed)'''
 
+
| [[File:Planet ringworld.png|24px]] {{green|+4}} Habitable Segments
=== Strategy ===
 
The Ringworld offers a massive amount of living space (100) while only counting as 4 Planets. The big limitation is that there are only very few Systems one can build them in, as the system requirements are identical to the ones for a Dyson Sphere, except it also needs a lot of planets to be used for raw material. Like Habitats it also requires a separate Ascension Perk from the other Megastructures. It is the only Megastructure that is exclusive for its system, as its creation will consume all other stellar bodies in the system.
 
 
 
=== Construction Events ===
 
The following events can take place while constructing a Ringworld:
 
* Favorable leadership conditions increase the building speed by 20%.
 
* A mineral deposit is discovered and you are given the option to halt construction for 20 days to get 500 {{iconify|minerals}} or proceed with the schedule.
 
* A number of workers might go missing, delaying the construction for a month. Two months later it will be revealed that one of the planets used in the construction had a species of furry worms the workers have grown fond of. You are given the option to either exterminate them and delay construction for a month or allow them on the building site. Whatever choice is made a month later the worms will be found feeding on the missing workers underground and be exterminated.
 
* Another empire might contact you, thinking that you are making weapons of mass destruction on your ring world. They will want to inspect the ring world. If you accept the request the construction will be halted and the empire gets the "Request Accepted" opinion modifier (+40 {{iconify|opinion}}, -2 yearly). If you declined they get the "Request refused" modifier.
 
 
 
=== Conquerable Ringworlds ===
 
Up to 7 Ringworlds can spawn "naturally" in a game in various states. Damaged segments can be repaired with the {{iconify|mega-engineering|21px}} tech.
 
* 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 Fleet Power.
 
* 3 in the systems of the Ancient caretakers (if ''Synthetic Dawn'' is installed) or Keepers of Knowledge (if ''Synthetic Dawn'' is not installed). 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.
 
* 1 in Cybrex Alpha. It requires completing the Cybrex precursor event chain. The ringworld is completely ruined and requires repairs on each section.
 
* 1 in Cybrex Beta. The system 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 Utopia is installed. It is completely ruined and each section requires repair.
 
 
 
== Galactic Wonders ==
 
These megastructures require the [[File:ap galactic wonders.png|link=Ascension perk|Galactic Wonders|21px]] Galactic Wonders ascension perk and can only be built once per empire. However their bonuses are massive and they cannot be destroyed, only captured. Habitats can also be built in the same system as Galactic Wonders. Each Galactic Wonder starts with a construction site costs {{red|300}} {{iconify|influence}} and {{red|10 000}} {{iconify|minerals}} and provides no benefit. However each subsequent construction phase will bring increasing bonuses, culminating with the end of the megastructure construction.
 
 
 
Galactic Wonders conquered from other empires do not count against the build limit. Nor do ruined ones that are found and repaired.
 
 
 
=== Dyson Sphere ===
 
{{SVersion|1.9}}
 
[[File:Dyson Sphere.jpg|thumb|200px|Dyson Sphere.]]
 
These multi-staged, truncated icosahedron-shaped structures harness the energy output of an entire [[star]]. A fully constructed '''Dyson Sphere''' provides a whopping {{green|+1000}} {{iconify|energy}}.
 
 
 
All rocky planets and moons in the system turn into frozen or cold barren [[worlds]] upon its completion due to the lack of thermal radiation they would receive considering the star has been mostly completely encased.
 
 
 
The project takes {{red|55}} years to complete and costs a grand total of {{red|300}} {{iconify|influence}} and {{red|260 000}} {{iconify|minerals}}. The following list shows the upgrade order.
 
 
 
'''Note:''' The amount of {{iconify|energy}} provided does not vary between different star types.
 
 
 
{| class="mildtable sortable" cellspacing="2" cellpadding="4" width="100%"
 
! style="width:20%" colspan=2 | Type
 
! style="width:20%" | Produces
 
! style="width:20%" class="unsortable" | Upkeep
 
! style="width:20%" class="unsortable" | Time
 
! style="width:20%" class="unsortable" | Cost
 
|- id="Dyson Sphere Site"
 
| style="width:1%" | [[File:Dyson Sphere Site.jpg|100px]]
 
| '''Site'''
 
 
| None
 
| None
| {{red|-5|back}} {{icon|energy}}
+
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{Hover box|5 years|1 800}} {{icon|time}}
+
| {{icon|alloys}} {{red|10000}}
| {{red|300|back}} {{icon|influence}}<br>{{red|10 000|back}} {{icon|minerals}}
+
|-
|- id="Dyson Sphere Frame"
+
| rowspan=6 style="vertical-align:top;border-top:2px solid black" | '''Dyson Sphere'''<br>[[File:Evt Dyson Sphere.png|200px]]
| style="width:1%" | [[File:Dyson Sphere Frame.jpg|100px]]
+
| style="border-top:2px solid black" | '''Site'''
| '''Frame'''
+
| 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|influence}} {{red|300}}<br>{{icon|alloys}} {{red|5000}}
 +
| rowspan=6 style="border-top:2px solid black" |
 +
* Can only be constructed around regular stars
 +
* Cannot be built if there are habitable planets, anomalies or stations 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" | [[Image:ap galactic wonders.png|24px|link=Traditions#Galactic_Wonders]]
 +
| rowspan=6 style="border-top:2px solid black" | {{icon|utp}}
 +
|-
 +
| '''Stage I (Frame)'''
 
| None
 
| None
 
| None
 
| None
| {{Hover box|10 years|3 600}} {{icon|time}}
+
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{red|50 000|back}} {{icon|minerals}}
+
| {{icon|alloys}} {{red|10000}}
|- id="Partial (25%)"
+
|-  
| style="width:1%" | [[File:Dyson Sphere Partial (25%).jpg|100px]]
+
| '''Stage II (Partial 25%)'''
| '''Partial (25%)'''
+
| {{icon|energy}} {{green|+1000}} Energy
| {{green|+250|back}} {{icon|energy}}
 
 
| None
 
| None
| {{Hover box|10 years|3 600}} {{icon|time}}
+
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{red|50 000|back}} {{icon|minerals}}
+
| {{icon|alloys}} {{red|10000}}
|- id="Partial (50%)"
+
|-  
| style="width:1%" | [[File:Dyson Sphere Partial (50%).jpg|100px]]
+
| '''Stage III (Partial 50%)'''
| '''Partial (50%)'''
+
| {{icon|energy}} {{green|+2000}} Energy
| {{green|+500|back}} {{icon|energy}}
 
 
| None
 
| None
| {{Hover box|10 years|3 600}} {{icon|time}}
+
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{red|50 000|back}} {{icon|minerals}}
+
| {{icon|alloys}} {{red|10000}}
|- id="Partial (75%)"
+
|-  
| style="width:1%" | [[File:Dyson Sphere Partial (75%).jpg|100px]]
+
| '''Stage IV (Partial 75%)'''
| '''Partial (75%)'''
+
| {{icon|energy}} {{green|+3000}} Energy
| {{green|+750|back}} {{icon|energy}}
 
 
| None
 
| None
| {{Hover box|10 years|3 600}} {{icon|time}}
+
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{red|50 000|back}} {{icon|minerals}}
+
| {{icon|alloys}} {{red|10000}}
|- id="Dyson Sphere"
+
|-  
| style="width:1%" | [[File:Dyson Sphere.jpg|100px]]
+
| '''Stage V (Completed)'''
| '''Dyson Sphere'''
+
| {{icon|energy}} {{green|+4000}} Energy
| {{green|+1000|back}} {{icon|energy}}
 
 
| None
 
| None
| {{Hover box|10 years|3 600}} {{icon|time}}
+
| {{icon|time}} {{Hover box|3 600 days|10 years}}
| {{red|50 000|back}} {{icon|minerals}}
+
| {{icon|alloys}} {{red|10000}}
 +
|-
 +
| rowspan=4 style="vertical-align:top;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|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" |
 +
* 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)'''
 +
| {{icon|research}} {{green|+100}} Research<br>{{icon|research speed}} {{green|+5%}} Research Speed
 +
| {{icon|energy}} {{red|-50}}
 +
| {{icon|time}} {{Hover box|3 600|10 years}}
 +
|  {{icon|alloys}} {{red|15000}}
 +
|-
 +
| '''Stage II (Research Wings)'''
 +
| {{icon|research}} {{green|+200}} Research<br>{{icon|research speed}} {{green|+10%}} Research Speed
 +
| {{icon|energy}} {{red|-75}}
 +
| {{icon|time}} {{Hover box|3 600|10 years}}
 +
|  {{icon|alloys}} {{red|15000}}
 +
|-
 +
| '''Stage III (Completed)'''
 +
| {{icon|research}} {{green|+300}} Research<br>{{icon|research speed}} {{green|+15%}} Research Speed
 +
| {{icon|energy}} {{red|-100}}
 +
| {{icon|time}} {{Hover box|3 600|10 years}}
 +
| {{icon|alloys}} {{red|15000}}
 +
|-
 +
| rowspan=5 style="vertical-align:top;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|5 years}}
 +
| style="border-top:2px solid black" | {{icon|influence}} {{red|300}}<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
 +
| {{icon|energy}} {{red|-40}}
 +
| {{icon|time}} {{Hover box|1 800|5 years}}
 +
|  {{icon|alloys}} {{red|10000}}
 +
|-
 +
| '''Stage II (Sentry Spire)'''
 +
| {{icon|sensor range}} {{green|+40}} Hyperlane Scanner Range
 +
| {{icon|energy}} {{red|-60}}
 +
| {{icon|time}} {{Hover box|1 800|5 years}}
 +
|  {{icon|alloys}} {{red|10000}}
 +
|-
 +
| '''Stage III (Sentry Aerials)'''
 +
| {{icon|sensor range}} {{green|+60}} Hyperlane Scanner Range
 +
| {{icon|energy}} {{red|-80}}
 +
| {{icon|time}} {{Hover box|1 800|5 years}}
 +
|  {{icon|alloys}} {{red|10000}}
 +
|-
 +
| '''Stage IV (Completed)'''
 +
| {{icon|sensor range}} {{green|Entire Galaxy}} Hyperlane Scanner Range
 +
| {{icon|energy}} {{red|-100}}
 +
| {{icon|time}} {{Hover box|1 800|5 years}}
 +
| {{icon|alloys}} {{red|10000}}
 +
|-
 +
| rowspan=5 style="vertical-align:top;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|5 years}}
 +
| style="border-top:2px solid black" | {{icon|influence}} {{red|300}}<br>{{icon|alloys}} {{red|5000}}
 +
| rowspan=5 style="border-top:2px solid black" |
 +
* Can only be constructed around black holes
 +
* If the black hole has a research station it is removed when the megastructure is completed
 +
| rowspan=5 style="border-top:2px solid black" | [[Image:ap galactic wonders.png|24px|link=Traditions#Galactic_Wonders]]
 +
| rowspan=5 style="border-top:2px solid black" | {{icon|mgc}}
 +
|-
 +
| '''Stage I (Anchor)'''
 +
| {{icon|minerals}} {{green|+500}} Minerals
 +
| {{icon|energy}} {{red|-25}}
 +
| {{icon|time}} {{Hover box|3 600|10 years}}
 +
| {{icon|alloys}} {{red|12500}}
 +
|-
 +
| '''Stage II (Lensing)'''
 +
| {{icon|minerals}} {{green|+1000}} Minerals
 +
| {{icon|energy}} {{red|-50}}
 +
| {{icon|time}} {{Hover box|3 600|10 years}}
 +
| {{icon|alloys}} {{red|12500}}
 +
|-
 +
| '''Stage III (Boring)'''
 +
| {{icon|minerals}} {{green|+1500}} Minerals
 +
| {{icon|energy}} {{red|-75}}
 +
| {{icon|time}} {{Hover box|3 600|10 years}}
 +
| {{icon|alloys}} {{red|12500}}
 +
|-
 +
| '''Stage IV (Completed)'''
 +
| {{icon|minerals}} {{green|+2000}} Minerals
 +
| {{icon|energy}} {{red|-100}}
 +
| {{icon|time}} {{Hover box|3 600|10 years}}
 +
| {{icon|alloys}} {{red|12500}}
 +
|-
 +
| rowspan=5 style="vertical-align:top;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|5 years}}
 +
| style="border-top:2px solid black" | {{icon|influence}} {{red|300}}<br>{{icon|alloys}} {{red|5000}}
 +
| rowspan=5 style="border-top:2px solid black" |
 +
* The final stage requires the {{iconify|Ancient Relics}} DLC and is not available to {{icon|Xenophobe}}{{icon|Fanatic Xenophobe}} Xenophobe Empires
 +
* 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)'''
 +
| {{icon|unity}} {{green|+100}} Unity<br>{{icon|amenities}} {{green|+5%}} Amenities
 +
| {{icon|energy}} {{red|-10}}
 +
| {{icon|time}} {{Hover box|3 600|10 years}}
 +
| {{icon|alloys}} {{red|15000}}
 +
|-
 +
| '''Stage II (Maturity)'''
 +
| {{icon|unity}} {{green|+200}} Unity<br>{{icon|amenities}} {{green|+10%}} Amenities
 +
| {{icon|energy}} {{red|-20}}
 +
| {{icon|time}} {{Hover box|3 600|10 years}}
 +
| {{icon|alloys}} {{red|15000}}
 +
|-
 +
| '''Stage III (Completed)'''
 +
| {{icon|unity}} {{green|+300}} Unity<br>{{icon|amenities}} {{green|+15%}} Amenities
 +
| {{icon|energy}} {{red|-30}}
 +
| {{icon|time}} {{Hover box|3 600|10 years}}
 +
| {{icon|alloys}} {{red|15000}}
 +
|-
 +
| '''Stage IV (Perfection)'''
 +
| {{icon|unity}} {{green|+400}} Unity<br>{{icon|amenities}} {{green|+20%}} Amenities
 +
| {{icon|energy}} {{red|-30}}
 +
| {{icon|time}} {{Hover box|3 600|10 years}}
 +
| {{icon|minor artifacts}} {{red|100}}
 +
|-
 +
| rowspan=4 style="vertical-align:top;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|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" |
 +
| rowspan=4 style="border-top:2px solid black" |
 +
| rowspan=4 style="border-top:2px solid black" | {{icon|mgc}}
 +
|-
 +
| '''Stage I (Hull)'''
 +
| {{icon|naval capacity}} {{green|+50}} Naval Capacity<br>{{icon|starbase}} {{green|+2}} Starbase Capacity<br>{{icon|starbase}} {{green|+4}} Defense Platforms<br>{{icon|sublight speed}} {{green|+5%}} Sublight Speed
 +
| {{icon|energy}} {{red|-25}}
 +
| {{icon|time}} {{Hover box|3 600|10 years}}
 +
| {{icon|alloys}} {{red|15000}}
 +
|-
 +
| '''Stage II (Comms)'''
 +
| {{icon|naval capacity}} {{green|+100}} Naval Capacity<br>{{icon|starbase}} {{green|+4}} Starbase Capacity<br>{{icon|starbase}} {{green|+8}} Defense Platforms<br>{{icon|sublight speed}} {{green|+10%}} Sublight Speed
 +
| {{icon|energy}} {{red|-50}}
 +
| {{icon|time}} {{Hover box|3 600|10 years}}
 +
| {{icon|alloys}} {{red|15000}}
 +
|-
 +
| '''Stage III (Completed)'''
 +
| {{icon|naval capacity}} {{green|+150}} Naval Capacity<br>{{icon|starbase}} {{green|+6}} Starbase Capacity<br>{{icon|starbase}} {{green|+12}} Defense Platforms<br>{{icon|sublight speed}} {{green|+15%}} Sublight Speed
 +
| {{icon|energy}} {{red|-75}}
 +
| {{icon|time}} {{Hover box|3 600|10 years}}
 +
| {{icon|alloys}} {{red|15000}}
 +
|-
 +
| rowspan=5 style="vertical-align:top;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|5 years}}
 +
| style="border-top:2px solid black" | {{icon|influence}} {{red|300}}<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|diplomatic weight}} {{green|+10%}} Diplomatic Weight<br>{{icon|opinion}} {{green|+10}} Opinion from all empires
 +
| {{icon|energy}} {{red|-10}}
 +
| {{icon|time}} {{Hover box|1 800|5 years}}
 +
| {{icon|alloys}} {{red|10000}}
 +
|-
 +
| '''Stage II (Consul Ring)'''
 +
| {{icon|diplomatic weight}} {{green|+20%}} Diplomatic Weight<br>{{icon|opinion}} {{green|+10}} Opinion from all empires<br>{{icon|envoy}} {{green|+1}} Available Envoys
 +
| {{icon|energy}} {{red|-20}}
 +
| {{icon|time}} {{Hover box|1 800|5 years}}
 +
| {{icon|alloys}} {{red|10000}}
 +
|-
 +
| '''Stage III (Forum Modules)'''
 +
| {{icon|diplomatic weight}} {{green|+30%}} Diplomatic Weight<br>{{icon|opinion}} {{green|+30}} Opinion from all empires<br>{{icon|envoy}} {{green|+1}} Available Envoys
 +
| {{icon|energy}} {{red|-30}}
 +
| {{icon|time}} {{Hover box|1 800|5 years}}
 +
| {{icon|alloys}} {{red|10000}}
 +
|-
 +
| '''Stage IV (Completed)'''
 +
| {{icon|diplomatic weight}} {{green|+40%}} Diplomatic Weight<br>{{icon|opinion}} {{green|+40}} Opinion from all empires<br>{{icon|envoy}} {{green|+2}} Available Envoys
 +
| {{icon|energy}} {{red|-40}}
 +
| {{icon|time}} {{Hover box|1 800|5 years}}
 +
| {{icon|alloys}} {{red|10000}}
 
|-
 
|-
 +
| rowspan=6 style="vertical-align:top;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|influence}} {{red|300}}<br>{{icon|alloys}} {{red|3000}}
 +
| rowspan=6 style="border-top:2px solid black" |
 +
* All ships start with 100 experience
 +
* Can only be built around star, in one-star systems, and there is no research station/mining station on it.
 +
* Once complete can build Titans, Colossi, and Juggernauts as if it had Titan Yards and Colossus Yards
 +
| rowspan=6 style="border-top:2px solid black" |
 +
| rowspan=6 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|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|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|alloys}} {{red|10000}}
 
|}
 
|}
==== Events ====
 
During the construction of the framework of the sphere, neighboring empires may tell you their astonishment about your progress in constructing the sphere and request for your permission to allow a group of engineers to study the technology. Accepting the request may result in opinion improvement by {{green|40}} which decreases by {{red|-2}} yearly. You will also be awarded 250 points of engineering research. There is no clue that whether the empire will be able to construct Dyson Spheres after the event.
 
 
Once you finish the framework of the Sphere, there is a chance where a neighboring empire will approach you revealing the importance of that star in said empires culture and asking for either a formal apology or a donation of credits. Refusing adds "The Blind Wanderer" to their opinion screen which reduces their opinion of you by {{red|-40}} which decreases by {{green|+2}} yearly.
 
 
==== Strategy ====
 
The Dyson Sphere offers a massive energy income at no cost for [[Unity]] or [[Research]] from population/colonized planets. Habitats may also be built in systems with a Dyson sphere, but not other megastructures.
 
 
=== Science Nexus ===
 
{{SVersion|1.9}}
 
[[File:Evt Science Nexus.png|450px|right|thumb|Completed Science Nexus]]
 
 
The Science Nexus takes close to {{red|25}} years to complete and costs a grand total of {{red|300}} {{iconify|influence}} and {{red|100 000}} {{iconify|minerals}} and provides a spectacular {{green|+225}} {{icon|research}} research bonus across all fields.
 
 
==== Strategy ====
 
The Science Nexus provides a huge bonus to Science without any penalty from having another colonized planet. The initial site cost 10,000 minerals, and the three stages after cost 30,000 minerals each while providing {{green|75}}/{{green|150}}/{{green|225}} to all science. Even the first stage is equivalent of a research-focused planet.
 
 
==== Events ====
 
One of these events can take place while owning a Science Nexus that is completed or has its research wings built.
 
* An incident at the physics department made everyone black out for 15 minutes and the scientist leader handling it disappeared. One year later the leader will mysteriously reappear as if nothing happened and gain the {{iconify|spark of genius}} and {{iconify|maniacal}} traits.
 
* A neural bank using brain power to improve research speed is invented. Only one of your scientist leaders will volunteer and allowing it will remove him or her from your pool but add a permanent +25 {{icon|research}} research production to the science nexus.
 
* Fountain of Youth: You might be given the option to recruit a prominent expert in the field of life-extension for 1000 {{iconify|energy credits}} or focus on research on organic supercomputers for free. Recruiting the scientist will lead the organic engineering chief scientist to accuse him of being a fraud and demand an investigation that will cost 500 {{iconify|energy credits}}. If the demand is refused two months later it will be revealed that her suspicions were right as the "prominent expert" disappears and you will gain nothing. Starting an investigation will give you the option to either apprehend him and gain a small amount of {{iconify|society}} research or market his fake research and gain the Fountain of Gold modifier for a year, giving you +200 monthly {{iconify|energy credits}} for a year. Focusing on organic supercomputers instead it will lead to the aforementioned neural vault event (which can happen individually as well).
 
  
=== Sentry Array ===
+
=== Ruined megastructures ===
{{SVersion|1.9}}
+
[[File:ruined dyson sphere.png|thumb|310px|Ruined Dyson Sphere]]
[[File:Evt Sentry Array.png|450px|right|thumb|Completed Sentry Array]]
+
A ruined version of a multi-stage megastructure can be found while exploring the galaxy, with the 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 x20 weight for {{iconify|Mega-Engineering|21px}} to appear as a researchable technology.
  
The easiest Galactic Wonder to construct, a Sentry Array must be built around a star or black hole and takes {{red|25}} years to complete and costs a grand total of {{red|300}} {{iconify|influence}} and {{red|90 000}} {{iconify|minerals}}.
+
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"
==== Strategy ====
+
! Ruined Megastructure !! {{iconify|Time}} !! {{iconify|Alloys}} !! System notes
The completely finished Sentry Array will give you vision over the entire galaxy. This makes it an important military and strategic asset, as complete intelligence of every pop and fleet in the galaxy can give considerable strategic information. On lower levels it will still provide at least considerable vision, quickly eliminating any "blind spots" in the sensor coverage of the player or their federation.
+
|-  
 
+
| Dyson Sphere || {{hover|20 years|7200}} || 20000 ||  
Provided you do not lose the system hosting your Sentry Array, it makes the Planetary Signal Booster technology useless, allowing you to focus on other late-game repeatable technologies. Due to their shared importance the capital system is usually an ideal location for the Sentry Array. On tiny galaxies even a halfway built Sentry Array will give complete coverage.
+
|-  
 
+
| Science Nexus || {{hover|13 years|4800}} || 15000 ||  
=== Ruined Galactic Wonders ===
+
|-  
[[File:ruined dyson sphere.png|thumb|350px|Ruined Dyson Sphere]]
+
| Sentry Array || {{hover|13 years|4800}} || 15000 || Contains a Tomb World
{{SVersion|1.9}}
+
|-
One of each Galactic Wonder can be found ruined in the galaxy, and the largest galaxies can spawn two or even all three ruined Galactic Wonders. Repairing them only requires {{iconify|mega-engineering|21px}} technology and no Ascension Perk, while also granting a better chance (x20 weight) to draw {{iconify|mega-engineering|21px}}. While they upgrade from their broken to a fully functional state in one step, they do not count for any achievements and generally do not trigger any of the special quests associatied with them. However as they do not count for the achievements they also do not count against any limit for that particular megastructure.
+
| Matter Decompressor || {{hover|13years|4800}} || 20000 ||
{| class="wikitable sortable plainlist"
+
|-
! Ruined Megastructure !! {{iconify|Time}} !! {{iconify|Minerals}}
+
| Mega Art Installation || {{hover|13 years|4800}} || 20000 || Is always a trinary system
|- id="Dyson Sphere"
+
|-
| Dyson Sphere || 7200 || 50000
+
| Strategic Coordination Center || {{hover|13 years|4800}} || 15000 ||
|- id="Science Nexus"
+
|-
| Science Nexus || 3600 || 30000
+
| Interstellar Assembly || {{hover|10 years|3600}} || 15000 || Contains deposits on most celestial bodies
|- id="Sentry Array"
+
|-
| Sentry Array || 3600 || 30000
+
| Mega Shipyard || {{hover|10 years|3600}} || 10000 ||  
 
|}
 
|}
  
 +
=== 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 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 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 {{iconify|Utopia}} DLC is activated. It is completely ruined and each section requires repairing. If the {{iconify|Distant Stars}} DLC is activated as well the system has a 50% chance to contain an unique anomaly.
 +
* 3 in the systems of the Ancient Caretakers if {{iconify|Synthetic Dawn}} DLC is activated. 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.
  
 
{{ConceptsNavbox}}
 
{{ConceptsNavbox}}
 
[[Category:Game concepts]]
 
[[Category:Game concepts]]
 
[[Category:Megastructures]]
 
[[Category:Megastructures]]

Latest revision as of 09:29, 26 July 2020

Version

Outliner top.png
This article has been verified for the current PC version (2.7) of the game.
Humanoid Empire constructing a Dyson Sphere

Megastructures are colossal constructions. Expensive and time-consuming to build or repair, these remarkable feats of engineering are nonetheless important wonders that provide large bonuses, demonstrating the technological and economic primacy of the builders' empire.

Construction[edit]

A construction ship is required to build the first stage (construction site) of any megastructure. If it has multiple stages, the following stages do not require a construction ship. All megastructures have a different textures depending on the empire that built or repaired them.

Construction Speed Bonuses[edit]

A few bonuses affect megastructure construction speed. These are highly desirable considering the great time requirements of such projects:

  • Master Builders Master Builders ascension perk increases the build speed by +50%
  • Menu icon policies and edicts.png Living Metal Mega-Construction edict increases the build speed by +50%
  • Menu icon policies and edicts.png Architectural Renaissance unity ambition also increases the build speed by +50%
  • R contingency core.png Using the Isolated Contingency Core relic greatly increases the build speed by +300% for 10 years

Gateways[edit]

Real scale of a Gateway

While exploring the galaxy, empires can find abandoned gateways that were once part of a massive, galaxy-spanning network. The number of abandoned gateways can be scaled by galaxy settings. Owning a system with an inactive Gateway drastically increases the chance for the Tech gateway activation.png Gateway Activation technology to appear, which is required to reactivate them.

Reactivation of an abandoned gateway takes 2 years and costs 6000 Energy Credits.png energy and 2500 Alloys.png alloys. When a Gateway is reactivated for the first time in the galaxy, another random Gateway will also reactivate along with it.

Empires can build their own Gateways by researching the Tech gateway construction.png Gateway Construction technology, which requires the Empire to have encountered any pre-existing Gateways, so if Gateways were disabled during galaxy creation, it is impossible to build any new.

Each system can only have one Gateway. They can be constructed even in a system with an L-Gate or a wormhole. The construction site must be built outside the system gravity well and is built in 3 years and costs 100 Influence.png influence and 2500 Alloys.png alloys. Upgrading it into a fully functional Gateway takes 5 years and costs 6000 Energy Credits.png energy and 2500 Alloys.png alloys.

Gateways can't be used to travel to another Gateway if the later is owned by an Empire that has closed their border to them. Regular Empires cannot close their borders to Fallen Empires, meaning that their Gateways can always be accessed by the Fallen Empires. Systems with gateways count as bordering for the purposes of diplomacy, so every opened gate increases diplomatic tension between all active gate-owners. Claims cannot be extended through gateways. Sectors don't extend through gateways. Additionally, gateways are able to greatly enhance and simplify trade infrastructure.

Gateways can't be deactivated or destroyed once they are fully activated or constructed.

Habitats[edit]

Mammalian size 8 habitat

Artificial planets in all but name, habitats have a 70% Mod habitability.png Base Habitability for all species that can be built above planets. Habitats have a unique set of Districts distinct from normal planetary ones. Up to 3 Districts are shared among all Habitats, with a fourth one being available if the Habitat is built above a planet with a resource deposit. Its appearance is dependent on the builders' empire appearance. They still requires colonization but the colony develops 3 times faster on a Habitat.

Habitats can be researched and built by any empire if Utopia.png Utopia DLC is installed. Otherwise, it's only available to empires with the Origin void dwellers.png Void Dwellers origin, which requires the Federations Federations DLC.

Habitats can be built by a construction ship around any regular Planet without an anomaly. Unlike other megastructures, habitats do not require a construction site and are finished in one go by the construction ship. Habitats start from 4 size, which means they can hold up to 4 districts. They can be upgraded via Decisions once all district slots were filled, and goes up to 8 size.

Size Cost Time Housing buildings Required technology
4 Influence.png 150
Alloys.png 1500
1800 days Gestalt consciousness.png Gestalt Consciousness only Tech habitat.png Orbital Habitats
6 Alloys.png 1000 720 days Yes.png Tech habitat 2.png Habitat Expansion
8 Alloys.png 1500 1440 days Yes.png Tech habitat 3.png Advanced Space Habitation

In addition, the Voidborne Voidborne Ascension Perk increases their Mod habitability.png Habitability by +20% (resulting in 90% Habitability without other modifiers) and unlock 2 building slots.

Habitats can be overrun by a Colossus as well as Crisis factions and cannot be rebuilt once destroyed.

Multi-stage megastructures[edit]

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 use it if they conquered one from another Empire, but they cannot upgrade it before they researched the technology. They 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. Habitats and gateways can be built in the same system as multi-stage megastructures.

It is only possible to build, upgrade, or restore one multi-stage megastructures at a time. The limit can be increased by +1 for each of the following:

  • Ap master builders.png Master Builders ascension perk
  • Menu icon policies and edicts.png Architectural Renaissance ambition edict
  • Federation research.png Level 5 Research Cooperative president

Multi-stage megastructures can only be built once per Empire and cannot be rebuilt if the existing one is lost control of, except for the Ring World. However, the ones conquered from other Empires as well as the ruined and restored ones found in the galaxy do not count against the limit. A system can also only host one of them.

Ring Worlds can have their habitable segments overran by a Colossus as well as Crisis factions and cannot be repaired again. Other multi-stage megastructures can't be destroyed or deactivated.

Megastructure Stage Production Upkeep Time Cost Notes AP DLC
Ring World
Evt Ringworld.png
Site None Energy Credits.png -5 Time 5 years Influence.png 300
Alloys.png 5000
  • Cannot be built in systems with black holes or multiple stars
  • Cannot be built if there are habitable planets, anomalies or stations present
  • All habitable segments feature +100% Mod habitability.png Fixed Habitability for each species, can build up to 5 unique Districts and have their own unique Designations
  • If built in the L-Cluster the uninhabitable segments may have Nanites.png Nanites deposits
  • 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
Ap galactic wonders.png Utopia.png
Stage I (Frame) None None Time 13.3 years Alloys.png 10000
Stage II (1 Segment) Planet ringworld.png +1 Habitable Segment None Time 10 years Alloys.png 10000
Stage III (2 Segments) Planet ringworld.png +2 Habitable Segments None Time 10 years Alloys.png 10000
Stage IV (3 Segments) Planet ringworld.png +3 Habitable Segments None Time 10 years Alloys.png 10000
Stage V (Completed) Planet ringworld.png +4 Habitable Segments None Time 10 years Alloys.png 10000
Dyson Sphere
Evt Dyson Sphere.png
Site None Energy Credits.png -5 Time 5 years Influence.png 300
Alloys.png 5000
  • Can only be constructed around regular stars
  • Cannot be built if there are habitable planets, anomalies or stations 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 PM Terraforming Candidate.png Terraforming Candidate modifier it is removed
Ap galactic wonders.png Utopia.png
Stage I (Frame) None None Time 10 years Alloys.png 10000
Stage II (Partial 25%) Energy Credits.png +1000 Energy None Time 10 years Alloys.png 10000
Stage III (Partial 50%) Energy Credits.png +2000 Energy None Time 10 years Alloys.png 10000
Stage IV (Partial 75%) Energy Credits.png +3000 Energy None Time 10 years Alloys.png 10000
Stage V (Completed) Energy Credits.png +4000 Energy None Time 10 years Alloys.png 10000
Science Nexus
Evt Science Nexus.png
Site None Energy Credits.png -25 Time 5 years Influence.png 300
Alloys.png 5000
  • The final stage of a Science Nexus can be upgraded to produce 50 more Research.png Research through an event that has a 30% chance to trigger a short time after the Megastructure is finished
Utopia.png
Stage I (Hub) Research.png +100 Research
Mod country all tech research speed.png +5% Research Speed
Energy Credits.png -50 Time 10 years Alloys.png 15000
Stage II (Research Wings) Research.png +200 Research
Mod country all tech research speed.png +10% Research Speed
Energy Credits.png -75 Time 10 years Alloys.png 15000
Stage III (Completed) Research.png +300 Research
Mod country all tech research speed.png +15% Research Speed
Energy Credits.png -100 Time 10 years Alloys.png 15000
Sentry Array
Evt Sentry Array.png
Site None Energy Credits.png -20 Time 5 years Influence.png 300
Alloys.png 5000
  • 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
Utopia.png
Stage I (Sentry Hub) Mod planet sensor range mult.png +20 Hyperlane Scanner Range Energy Credits.png -40 Time 5 years Alloys.png 10000
Stage II (Sentry Spire) Mod planet sensor range mult.png +40 Hyperlane Scanner Range Energy Credits.png -60 Time 5 years Alloys.png 10000
Stage III (Sentry Aerials) Mod planet sensor range mult.png +60 Hyperlane Scanner Range Energy Credits.png -80 Time 5 years Alloys.png 10000
Stage IV (Completed) Mod planet sensor range mult.png Entire Galaxy Hyperlane Scanner Range Energy Credits.png -100 Time 5 years Alloys.png 10000
Matter Decompressor
Evt Matter Decompressor.png
Site None Energy Credits.png -5 Time 5 years Influence.png 300
Alloys.png 5000
  • Can only be constructed around black holes
  • If the black hole has a research station it is removed when the megastructure is completed
Ap galactic wonders.png MegaCorp.png
Stage I (Anchor) Minerals.png +500 Minerals Energy Credits.png -25 Time 10 years Alloys.png 12500
Stage II (Lensing) Minerals.png +1000 Minerals Energy Credits.png -50 Time 10 years Alloys.png 12500
Stage III (Boring) Minerals.png +1500 Minerals Energy Credits.png -75 Time 10 years Alloys.png 12500
Stage IV (Completed) Minerals.png +2000 Minerals Energy Credits.png -100 Time 10 years Alloys.png 12500
Mega Art Installation
Evt Mega Art Installation.png
Site None Energy Credits.png -5 Time 5 years Influence.png 300
Alloys.png 5000
  • The final stage requires the Ancient Relics.png Ancient Relics DLC and is not available to Xenophobe.pngFanatic Xenophobe.png Xenophobe Empires
  • A ruined Mega Art Installation will be repaired to stage 3 and can be upgraded to stage 4 as with the constructed version
MegaCorp.png
Stage I (Nascency) Unity.png +100 Unity
Amenities.png +5% Amenities
Energy Credits.png -10 Time 10 years Alloys.png 15000
Stage II (Maturity) Unity.png +200 Unity
Amenities.png +10% Amenities
Energy Credits.png -20 Time 10 years Alloys.png 15000
Stage III (Completed) Unity.png +300 Unity
Amenities.png +15% Amenities
Energy Credits.png -30 Time 10 years Alloys.png 15000
Stage IV (Perfection) Unity.png +400 Unity
Amenities.png +20% Amenities
Energy Credits.png -30 Time 10 years Arcane technology.png 100
Strategic Coordination Center
Evt Strategic Coordination Center.png
Site None Energy Credits.png -5 Time 5 years Influence.png 300
Alloys.png 5000
MegaCorp.png
Stage I (Hull) Mod fleet size add.png +50 Naval Capacity
Spaceport 1.png +2 Starbase Capacity
Spaceport 1.png +4 Defense Platforms
Mod ship speed mult.png +5% Sublight Speed
Energy Credits.png -25 Time 10 years Alloys.png 15000
Stage II (Comms) Mod fleet size add.png +100 Naval Capacity
Spaceport 1.png +4 Starbase Capacity
Spaceport 1.png +8 Defense Platforms
Mod ship speed mult.png +10% Sublight Speed
Energy Credits.png -50 Time 10 years Alloys.png 15000
Stage III (Completed) Mod fleet size add.png +150 Naval Capacity
Spaceport 1.png +6 Starbase Capacity
Spaceport 1.png +12 Defense Platforms
Mod ship speed mult.png +15% Sublight Speed
Energy Credits.png -75 Time 10 years Alloys.png 15000
Interstellar Assembly
Evt Interstellar Assembly.png
Site None Energy Credits.png -5 Time 5 years Influence.png 300
Alloys.png 5000
MegaCorp.png
Stage I (Locus) Diplomatic weight.png +10% Diplomatic Weight
Diplomacy opinion.png +10 Opinion from all empires
Energy Credits.png -10 Time 5 years Alloys.png 10000
Stage II (Consul Ring) Diplomatic weight.png +20% Diplomatic Weight
Diplomacy opinion.png +10 Opinion from all empires
Envoy.png +1 Available Envoys
Energy Credits.png -20 Time 5 years Alloys.png 10000
Stage III (Forum Modules) Diplomatic weight.png +30% Diplomatic Weight
Diplomacy opinion.png +30 Opinion from all empires
Envoy.png +1 Available Envoys
Energy Credits.png -30 Time 5 years Alloys.png 10000
Stage IV (Completed) Diplomatic weight.png +40% Diplomatic Weight
Diplomacy opinion.png +40 Opinion from all empires
Envoy.png +2 Available Envoys
Energy Credits.png -40 Time 5 years Alloys.png 10000
Mega Shipyard
Evt Megashipyard.png
Site None Energy Credits.png -5 Time 5 years Influence.png 300
Alloys.png 3000
  • All ships start with 100 experience
  • Can only be built around star, in one-star systems, and there is no research station/mining station on it.
  • Once complete can build Titans, Colossi, and Juggernauts as if it had Titan Yards and Colossus Yards
Federations
Stage I (Framework) Sb shipyard.png +5 Shipyard Capacity
Mod ship build speed mult.png +33% Empire Ship Build Speed
Energy Credits.png -10 Time 5 years Alloys.png 10000
Stage II (Core) Sb shipyard.png +10 Shipyard Capacity
Mod ship build speed mult.png +66% Empire Ship Build Speed
Energy Credits.png -20 Time 5 years Alloys.png 10000
Stage III (Complete) Sb shipyard.png +20 Shipyard Capacity
Mod ship build speed mult.png +100% Empire Ship Build Speed
Sb colossus assembly yard.png Titan, Colossus, and Juggernaut construction
Energy Credits.png -40 Time 5 years Alloys.png 10000

Ruined megastructures[edit]

Ruined Dyson Sphere

A ruined version of a multi-stage megastructure can be found while exploring the galaxy, with the larger galaxies having a chance to spawn more ruined megastructures. Repairing them only requires the Tech mega engineering.png Mega-Engineering technology. If not yet researched, owning a system with a ruined megastructure also grants a x20 weight for Tech mega engineering.png Mega-Engineering to appear as a researchable technology.

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.

Ruined Megastructure Time Time Alloys.png Alloys System notes
Dyson Sphere 7200 20000
Science Nexus 4800 15000
Sentry Array 4800 15000 Contains a Tomb World
Matter Decompressor 4800 20000
Mega Art Installation 4800 20000 Is always a trinary system
Strategic Coordination Center 4800 15000
Interstellar Assembly 3600 15000 Contains deposits on most celestial bodies
Mega Shipyard 3600 10000

Conquerable Ringworlds[edit]

Up to 8 ringworlds can spawn naturally in a game in various states. Damaged segments can be repaired with the Tech mega engineering.png Mega-Engineering 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 fleet power.
  • 1 in the 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 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 Utopia.png Utopia DLC is activated. It is completely ruined and each section requires repairing. If the Distant Stars.png Distant Stars DLC is activated as well the system has a 50% chance to contain an unique anomaly.
  • 3 in the systems of the Ancient Caretakers if Synthetic Dawn.png Synthetic Dawn DLC is activated. 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 Shattered Ring 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.
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