Planetary features

Version

This article has been verified for the current PC version (3.2) of the game.

Celestial body

Features

Planetary features represent notable areas on natural planets. They determine the number of resource Districts the planet can support and some features exclusively obtained by events can provide various bonuses to planets.

If a natural planet is terraformed into Ecumenopolis, Hive World, or Machine World, it loses all of its planetary features, including event features. Hive Worlds and Machine Worlds do not lose the deposit features that determine the max number of Strategic Resource buildings.

Deposit features

These planetary features are generated on each natural planet and determine the number of resource Districts and Strategic Resource buildings the planet can support. If a planet is terraformed these features may be changed to new ones with the same effects that fit the planet class by flavor.

Dry planets are 50% more likely to have planetary features that increase the limit for Generator Districts or Mote Harvesting Traps. Wet planets are 50% more likely to have planetary features that increase the limit for Agriculture Districts or Gas Extraction Wells. Cold planets are 50% more likely to have planetary features that increase the limit for Mining Districts or Crystal Mines. Gaia planets are 50% more likely to have planetary features that increase the limit for Gas Extraction Wells, Mote Harvesting Traps and Crystal Mines.

	Agriculture districts	Generator districts	Mining districts	Crystal mines	Gas extraction wells	Mote harvesting traps	Betharian power plant	Alien zoo
+1	Boggy Fens Bountiful Plains Fair Tundra Green Hills Lichen Fields Natural Farmland Nutritious Mudlands Rugged Woods	Arid Highlands Buzzing Plains Hot Springs	Mineral Fields Mineral Striations Ore-Veined Cliffs	Crystalline Caverns	Bubbling Swamp	Dust Caverns	Betharian Fields	Isolated Valley
+2	Fertile Lands Fungal Caves Great River Lush Jungle	Frozen Gas Lake Rushing Waterfalls Searing Desert	Prosperous Mesa Ore-Rich Caverns	Crystal Forest Crystal Reef	Fuming Bog	Dust Desert
+3	Black Soil Fungal Forest Marvelous Oasis Teeming Reef Tropical Island	Geothermal Vents Tempestous Mountain Underwater Vents	Rich Mountain Submerged Ore Veins

Habitat features

These planetary features are added on habitats when built orbiting the appropriate resource deposits.

Feature	Effects	Description
Exotic Gas Deposit	+1 to +5 Max Gas Extraction Wells	This habitat is built near an exploitable exotic gas deposit.
Rare Crystal Deposit	+1 to +5 Max Crystal Mines	This habitat is built near an exploitable rare crystal deposit.
Volatile Mote Deposit	+1 to +5 Max Mote Harvesting Traps	This habitat is built near an exploitable volatile mote deposit.
Alloy Deposit	+1 to +5 Alloys	This habitat is built near an exploitable source of alloys.
Zro Deposit	+1 to +3 Zro	This habitat is built near an exploitable zro deposit.
Dark Matter Deposit	+1 to +3 Dark Matter	This habitat is built near an exploitable dark matter deposit.
Living Metal Deposit	+1 Living Metal	This habitat is built near an exploitable living metal deposit.
Nanite Deposit	+1 Nanites	This habitat is built near an exploitable source of nanites.

Anomaly features

These planetary features can be added by random anomalies on habitable planets.

Feature	Effects	Description
Abandoned Primitive Homesteads	+10% Society from Jobs +2 Max Agriculture Districts	These abandoned homesteads were once inhabited by a society of reptiles. They still populate the planet, but have since lost all capacity for sapient thought.
Ancient Mining Site	+5 Max Mining Districts	The site of an ancient mining operation. Despite its age, much of the equipment can still be operated.
Ancient One	+4 Society Research	An ancient being, living deep beneath the waves, is the dominating life force on this planet.
Enigmatic Robot	+5 Alloys	An ancient and enigmatic little robot, supervising a factory which dates back to an earlier civilization.
Harvester Fields	+6 Max Agriculture Districts	Vast fields of dense, edible vegetation where ancient solar-powered harvesters assist in gathering crops.
Hyperfertile Valley	+5 Max Agriculture Districts	The soil in this valley is extremely fertile, and it is covered in intense greenery.
Mutation Vats	+12 Society Research +1 Exotic Gases	In a painful ceremonial procedure members of this post-nuclear exchange society on this planet would expose themselves to near-lethal doses of chemical mutagens, in the hopes of revealing their 'true selves'. The skeletal remains found at the bottom of many of these vats suggest not all supplicants survived the ordeal.
Toy Factory Complex	+10% Society from Jobs +20% Engineering from Jobs +2 Researcher Jobs	Complex machinery ceaselessly molds complex polymers into small items of varying shapes and inscrutable purposes.
Wetware Computer	+20% Engineering from Jobs +2 Researcher Jobs	The oceans on this world are almost completely covered in a fine network of algae that appear to be a primitive wetware computer.
Flooded Mounds	+20% Society from Jobs +2 Researcher Jobs	The soil in this valley is extremely fertile, and it is covered in intense greenery.
Nanosands	+2 Max Mining Districts +2 Max Districts	The sand dunes on this planet are almost entirely composed of countless broken nanites. Their structure is degraded far beyond any chance for reactivation, but they do coat the planet in rare metal granulate.
Savage Wildlands	+10% Society from Jobs +1 Researcher Jobs	These indigenous creatures who inhabit this region appear to operate as a single organism.
Zone A	+3 Unity +10% Physics from Jobs +2 Researcher Jobs	A thirteen-by-thirteen kilometer stretch of land on this planet is a ruin of unknown origin, littered with many bizarre and unique alien artifacts. Bafflingly, it also produces sensations of deep contentment in its visitors.

Event features

These planetary features do not naturally generate on planets. They can be created exclusively by certain events and controllable factors.

Feature	Sources	Effects	Description
Ancient Bombardment Craters	What Happened Here (20% chance)	+20% Physics from Jobs +2 Researcher Jobs	This world was subjected to intense orbital bombardment long ago. Parts of the surface are still pockmarked with impact craters.
Ancient Battlefield	What Happened Here (20% chance)	+20% Engineering from Jobs +2 Researcher Jobs	The civilization that once inhabited this world was destroyed by an invading force from somewhere beyond their solar system. This ancient battlefield is littered with ancient debris from their desperate last stand.
Irradiated Ruins	What Happened Here (20% chance)	+20% Society from Jobs +2 Researcher Jobs	Remnants from a massive nuclear war waged by the two global superpowers that once inhabited this world.
Cave Shroom Veins	Feral Overload event chain (Exterminate the Cave Mushrooms special project)	+3 Cave Cleaner Jobs +1 Cave Cleaner Job per 20 pops	Ridding the caverns of fungus revealed rich mineral veins.
Spore Vents	Feral Overload event chain (Utilize the Cave Mushrooms special project)	+2 Gas Plant Engineer Jobs +1 Gas Plant Engineer Job per 20 pops	Shroom spores can be refined for industrial use.
Migrating Forests	Migrating Forests event chain	-1 Max Agriculture Districts -1 Max Generator Districts -1 Max Mining Districts	The mobile forests of this world frequently migrate en masse to new regions, disrupting efforts at building roads, power lines and other infrastructure.
Migrating Forests Reserve	Migrating Forests event chain (Study Migrating Forests special project)	+20% Society from Jobs +2 Researcher Jobs	This entire region has been set aside for the migrating forests that are native to this world. Here they can roam in peace, without causing damage to urban centers.
Nanite Swarm Remains	On the Origin of Nanites (Destroy the Swarm special project)	+3 Max Mining Districts +2 Max Crystal Mines	A fine powder of all that remains of the massive nanite swarm that evolved on - and once covered, Parvus III
Subterranean Contact Zone	Subterranean Civilization event chain (Establish Communications special project)	+2 Max Generator Districts +2 Max Districts +1 Subterranean Liaison Officer Job per 20 pops	An area where Subterranean dwellers and Surfacers can work together towards peace and prosperity.
Subterranean Farming Caverns	Subterranean Civilization event chain (Preemptive Strike special project)	+3 Max Agriculture Districts +2 Max Districts	A network of vast caverns which contain numerous fungal farms, hunting areas, and lakes teeming with edible flora and fauna.
Subterranean Generator Areas	Subterranean Civilization event chain (Preemptive Strike special project)	+3 Max Generator Districts +2 Max Districts	Subterranean rivers and the geothermal energy from the molten core of the planet offer vast potential for energy generation.
Subterranean Mining Sites	Subterranean Civilization event chain (Preemptive Strike special project)	+3 Max Mining Districts +2 Max Districts	Underground tunnels lead to a variety of mineral-rich ore veins inaccessible from the surface.
Juvenile Nemma	Unsteady Ground event chain	+2 Max Districts +20% Society from Jobs -2 Food	A young Nemma which we have bred and is now large enough to be capable of carrying some of our industry.
Nemma Mining Operation	Unsteady Ground event chain (Start the Nemma Mining Operation special project)	+1 Nemma Miner Job +1 Nemma Miner Job per 25 pops	The careful balance of drugs and pain inhibitors allows us to drill into the Nemmas while still residing on them.
Lotus Corrie	Impossible Corrie event chain	+20% Physics from Jobs	An improbable geological feature has emerged. Strange and reflective crystal deposits line its curved walls.
Blue Lotus Prototype	Impossible Corrie event chain	+1 Transmuter Job	This highly experimental facility seeks to transmute everyday silicates into useful alloys.
Blue Lotus Crater	Impossible Corrie event chain	+1 Max Mining Districts +2 Alloys	Site of an accidental, runaway transmutation of rock and other matter into a single, precious alloy.
Blue Lotus Facility	Impossible Corrie event chain (Blue Lotus Facility special project)	+2 Transmuter Job	An industrial-scale facility which transmutes everyday silicates into useful alloys.
Blue Lotus Ruin	Impossible Corrie event chain (Blue Lotus Facility special project)	+1 Alloys	Ruined site of a once-promising, experimental facility for transmuting rock and other matter into alloys. Nothing now remains, save this minor seam.
Mutant Landfill	Abandoned Terraforming Equipment event chain	+20% Society from Jobs +2 Researcher Jobs	A putrid mass of dead mutated horrors. Their volatile organic matter has twisted together to form a structure of sorts.
Impact Crater	Space Bounty	+3 Max Mining Districts	A crater from a large meteor impact. Minerals from the meteor itself can still be found at the site.
Odd Factory	An Odd Factor	+1 Odd Factory Worker Job	A well-crafted facility that produces high value resources, left on the planet by a different civilization.
Ancient Particle Accelerator	Ruined Particle Accelerator	+20% Physics from Jobs +2 Researcher Jobs	This old particle accelerator was built using a novel design, and the surviving terminals within the structure contain a massive amount of research data composed by what must have been a brilliant theoretical physicist.
Titanic Lifeforms	Titanic Life event chain	-1 Max Districts +4 Society Research	Numerous Titanic aliens make this area their home, it would be wise to avoid it.
Underground Vault	Underground Vault event chain	+20% Society from Jobs +2 Researcher Jobs	A massive underground vault, intended as a bomb shelter by this world's original inhabitants. The vault's occupants turned on each other when their food ran out.
Underground Vault	Underground Vault event chain	+10% Engineering from Jobs +2 Max Mining Districts	A massive underground vault, intended as a bomb shelter by this world's original inhabitants. The vault's occupants turned on each other when their food ran out.
Portal Research Area	The Doorway event chain	+1 Dimensional Portal Researcher Job +1 Dimensional Portal Researcher Job per 40 pops	A secure complex has been built around the Dimensional Portal to house research staff dedicated to probing its mysteries.
Party Fever	Dancing Plague event chain	+15% Pop Growth Speed	Something about this planet induces feelings of exhilaration and the irresistible urge to dance, as well as certain aphrodisiac urges. This has made the world a prime destination for partygoers young and old who seek to shed their inhibitions and experience the thrill of the planet's perpetual dancing festivals with abandon.
Dayside Solar Farm	Expand Dayside Infrastructure decision	+6 Max Generator Districts +30% Energy from Jobs	This world has all its solar power set up on the dayside of its tidally locked hemispheres, granting it access to an unlimited amount of solar hours.
Loop-Plowed Farm	Horizon Signal event chain	+4 Max Agriculture Districts	The food crops lean into the wind, somehow.
Spiral-Hewn Mine	Horizon Signal event chain	+4 Max Mining Districts	Narrow shafts twist around spiraling mineral veins.
Radiotrophic Preserve	Radioactive Flora event	+5% Society from Jobs +3 Entertainer Jobs	An isolated area filled with low pressure and a very radioactive atmosphere keeps the natives of this world alive.
Dragonslayer Monument	Dragonslayer	+15 Unity	A monument commemorating the defeat of the Ether Drake.
Stellar Devourer Trophy	Stellar Devourer	+6 Unity +10% Happiness	A trophy made out of the remains of the Stellar Devourer, reminding our great nation of its victory over the gargantuan entity.
Cryonic Clones Monument	Clones in Cryostasis	+6 Society Research	Hundreds of alien clones were left sealed in cryostasis chambers when this Ring World was still a ruin. Now fully restored, the clones have been preserved in this monument.
Processing Pens	Wild Eukaryotes	+14 Food	The fungoids native to this planet were genetically engineered to be docile... and delicious. In these vast processing pens, the fungoids are nourished and then harvested.
Numa's Breath	Numistic Order caravan deal	+3 Max Generator Districts +2 Max Districts	This stable vent reaching into the planet's crust was created by The Numistic Order.
Sentinels	The Sentinels archaeological site	+2 Living Metal	The broken remains of nine monumental automatons made from an unusual metal alloy offer an ample supply of Living Metal.
Federation Monument	Hegemony event chain	+0.5 Monthly Influence	This spaceborne monument stands witness to the unity, strength and splendor of the interstellar federation that constructed it.
Project Cornucopia	Project Cornucopia decision	+4 Max Mining Districts +5% Minerals from jobs -20% Habitability	Near-endless resources are at our fingertips, if we have the courage to seize them. Just think of what wonders we could build if we conquer our fear.
Feeding Dragon	A Hungry Dragon	+10 Stability +6 Unity -15 Food	The mighty Sky Dragon has landed, and is proceeding to devour its way through a startling amount of food.

Unique features

These features can be exclusively found on certain planets in the galaxy or they are related with certain empire origins.

Feature	Sources	Effects	Description
Abandoned Mining Tunnels	Relic Worlds	+6 Max Mining Districts	Many of the ruins on the planet's surface were built by minerals extracted from these tunnels. Although most have been mined to depletion, there are still several with rich yields.
Ancient Reactor Pits	Relic Worlds	+6 Max Generator Districts	These deep pits near the planet's equator once housed its primary energy generators. Much of the surprisingly sturdy infrastructure has survived, and new reactors can be slotted into it.
Central Spire	Relic Worlds	+15% Research from Jobs +8 Researcher Jobs	This towering structure appears to have served as the administrative center of the planet. Its central location and mostly intact interior provides an unmatched opportunity to research this world.
Dense Ruins	Relic Worlds	+15% Research from Jobs -6 Max Districts	The study of the dense ruins that cover this Relic World are a boon to science, but their presence also limits the amount of livable space.
Immense Solar Array	Relic Worlds	+3 Max Generator Districts	This solar array is nearly the size of a small continent. Most of it has been smashed beyond repair, but the underlying power infrastructure has survived, making it a good site for energy production.
Industrial Sector	Relic Worlds	+2 Max Crystal Mines +2 Max Gas Extraction Wells +2 Max Mote Harvesting Traps	This entire region once served as as the industrial heartland of the planet. The factories and refineries that are operated here have long stopped working, but vast amounts of scattered resources can still be found in the area.
Metal Boneyards	Relic Worlds Machine Intelligence homeworlds	+4 Max Mining Districts +10% Society Research from Jobs	The hollowed-out metal skeletons of fallen infrastructure seem almost to groan as the wind whistles through them.
Former Relic World	Terraformed Relic Worlds	+10% Research from Jobs	This ecumenopolis was once an abandoned Relic World. Most of the old ruins were repurposed or cleared away when the planet-wide city was rebuilt, but there are still many sites that are of scientific value.
Ancient Sunken City	Polaris II	+3 Max Mining Districts +10% Industrial District Build Speed	The cities of the Polarians once covered the frozen ocean before their icy foundations melted away.
Valley of Zanaam	Zanaam	+30% Research from Jobs	This Valley is home to a mysterious obelisk that is covered in letters from a dead alien language. It hums with power and those in its proximity suffer headaches.
Massive Crater	Calamitous Birth homeworld	+6 Max Districts +6 Max Mining Districts -6 Max Agriculture Districts +25% Pop Growth Speed if Calamitous Birth origin	The impact site of the meteorite which brought Lithoids to this planet.
Tree of Life	Tree of Life homeworld	+10 Housing +15% Pop Growth Speed +10% Society Research from Jobs +4 Max Agriculture Districts 4 Food Upkeep Destroyed at 50 Devastation	The Great Tree has sheltered and supported the Hive for untold generations.
Tree of Life Sapling	Tree of Life colonies	+5 Housing +10% Pop Growth Speed +10% Society Research from Jobs +2 Max Agriculture Districts 2 Food Upkeep Destroyed at 50 Devastation	An offshot of the Great Tree, transplanted here by the Hive. It will take millennia for it to fully mature.
Consolidated Resources	Resource Consolidation homeworld	+25 Minerals	The refined minerals wealth of an entire Solar System is gathered here in continent-sized piles.
Organic Landfills	Determined Exterminator homeworlds Driven Assimilator homeworlds	+4 Max Generator Districts +10% Society Research from Jobs	Toxic biohazard waste rots and fumes in vast heaps under the sun.
Organic Slurry	Machine Worlds Biological Pop present when terraforming completes Driven Assimilator homeworld	+15 Food	An ocean of organic slurry, the processed remains of the former biomass of a planet.
Junk Canals	Junk Rattlings planets	+3 Max Agriculture Districts	These narrow canals shake around the junk piles, and some adjacent soil is surprisingly fertile.
Junk Hollows	Junk Rattlings planets	+3 Max Generator Districts	These hollows deep beneath the surface junk would serve well as isolated reactor chambers.
Junk Wastes	Junk Rattlings planets	+3 Max Mining Districts	The wastes stretch as far as one can see, with occasional pieces of larger junk jutting up out of the ground.
Irradiated Valley	Superflares system tomb world	+3 Max Generator Districts	The solarflare has washed this isolated valley with heavy radiation.
Arcane Replicator	Void Dwellers homeworld	+12 Alloys +4 Consumer Goods	This ancient machine is nestled deep within the habitat's interior, built into its main reactor from where it also draws its power. A relic of whomever originally built this habitat, its matter replication technology is utterly incomprehensible to us.

Earth features

Earth has a set of custom planetary features when selected as the empire homeworld, detailing its history before the events of Stellaris.

Feature	Effects	Description
Delhi Sprawl	+2 Max Generator Districts	Lakshmi Commerce Tower was the tallest building on Earth for the better part of the 22nd century, and its unique shape remains an iconic feature of the Delhi skyline.
BosWash Metropolitan Axis	+3 Max Generator Districts	The BosWash Riots traumatized an entire generation and led to sweeping legal reforms. Never Forget!
Pearl River Agglomerate	+3 Max Generator Districts	The first region on Earth to be officially designated a megacity. Several other developing urban regions would eventually adopt their own versions of the Golden Delta's successful anti-pollution policies.
Mauritanian Security Zone	+1 Max Mining Districts	Unexploded munitions are still occasionally found near the compound where Colonel Tetchu and the remnants of his brigade made their famous last stand.
Mesopotamian Urban Corridor	+3 Max Mining Districts	The megalopolis that stretches along most of the Fertile Crescent is in itself a monument to this ancient birthplace of civilization.
Great Albertan Crater	+3 Max Mining Districts	When 711494 Satis approached Earth and triggered the Great Panic of '72, everyone thought this was it - the Big One had finally arrived. Fortunately, it wasn't big enough to cause an extinction event. Unfortunately, it wiped out much of Alberta.
Scandinavian Reclamation Sector	+1 Max Agriculture Districts	Reclamation efforts in the late 22nd century eliminated all but the most stubborn pockets of radiation, and mutation levels are now at an all-time low since the Containment Breach.
Saharan Irrigation Project	+4 Max Agriculture Districts	Few today remember the vicious ridicule that Operation Green Sahara faced when it was first proposed by Professor Izquierdo.
Pacific Algae Tracts	+3 Max Agriculture Districts	Invisible until you plunge beneath the waves, the algae tracts seem to stretch into infinity.

Blockers

Blockers are obstacles that reduce District Cap by 1 (or more), and may block some planetary features from being exploited. They can be cleared by spending resources and time and some of them may have rewards when cleared. Clearing can be done while the planet is being colonized or after the colony is completed.

If a natural planet is terraformed into a planet class other than Ecumenopolis, all of its blockers are cleared and rewards are given. If it was terraformed into Hive World or Machine World, the planetary feature it unblocks will be lost.

Natural blockers

These blockers can be found on natural habitable worlds and they unblock random planetary features when cleared. Most of them require a technology to be cleared.

Blocker	Spawn chance	Removal technology	Removal cost	Removal time	Description
Active Volcano	x0.5 if Alpine x0.5 if Planet Size < 15 x0 if world is a moon	Deep Crust Engineering	1000	270	There is an active volcano in this region, spewing forth lava and volcanic gases.
Dangerous Wildlife	x2 if Hostile Fauna modifier x10 if Titanic Life modifier x0.5 if Planet Size < 15 x0 if world is a moon	Dangerous Wildlife Removal	500	270	The wildlife in this region is particularly lethal, with many dangerous predators and poisonous plants.
Deep Sinkhole	x2 if Arid x2 if Savannah	Subterranean Colonization	500	180	A colossal sinkhole covers most of this region.
Dense Jungle	x2 if Tropical x2 if Continental	Selective Defoliants	500	180	This entire region is completely overgrown with thick, impassable jungle.
Massive Glacier	x2 if Alpine x2 if Arctic	Climate Control Network	500	180	An immense body of dense ice covers this region.
Impassable Mountains	x2 if Alpine x0.5 if Planet Size < 15 x0 if world is a moon	Planetary Resurfacing	500	180	A vast range of tall and impassable mountains stretches across this region.
Noxious Swamp	x2 if Tundra	Xeno-Hydraulic Mastery	500	180	Treacherous swamplands and bogs surrounded by putrid gases.
Quicksand Basin	x2 if Desert	Soil Remediation	500	180	A vast body of quicksand covers this region, making construction impossible.
Toxic Kelp	x2 if Ocean	Ocean Ecology Management	500	180	A thick forest of kelp that is toxic to most forms of life covers the ocean in this region.
Bomb Crater	Tomb Worlds		800	270	This massive crater was created by the detonation of a particularly devastating hydrogen bomb.
City Ruins	Tomb Worlds		800	270	Once a great city, now just a metal boneyard stretching as far as the eye can see.
Radioactive Wasteland	Tomb Worlds		800	270	Few organisms can survive in this desolate, irradiated wasteland.

Event blockers

A number of blockers can be created exclusively by certain events and controllable factors. These blockers do not block any planetary feature or require any technology to be cleared but still decrease the District Cap and may have other negative effects.

Blocker	Source	Removal cost	Removal time	Description
Terraforming Residue	Terraforming Complications event	500	180	The results of a partially successful terraforming process have created areas of strange biological abominations.
Impact Crater	Asteroid Sighted event	300	100	Something collided with the surface of this world at some point, creating this massive impact crater.
Subterranean Entrance	Subterranean Civilization event chain	500	100	A large hole in the ground that leads into the extensive cave network stretching beneath the surface of this world.
Rifts	Voidspawn hatching	500	120	Seismological phenomena are causing the planet crust to crack, spewing out sulfuric gases and toxic slime.
Fungoid Extermination Residue	Paradise Lost event chain	300	120	This toxic goo is all that remains of the exterminated Fungoids.
Lithoid Devastation	Consume World decision	1000	360	A lithoid devouring swarm has despoiled this region. With great effort it may be possible to undo the damage. Cannot be removed by Terravore empires Habitability: -10%

Relic World blockers

There is a number of blockers that can be exclusively found on Relic Worlds. They are expensive but rewarding to remove.

Blocker	Removal cost	Removal time	Rewards	Description
Collapsed Spire	2000	480	Central Spire planetary feature	An immense residential spire has collapsed under its own weight in this region, blocking access. While it was still standing, this towering structure must have been among the tallest on the planet.
Crumbling Mining Tunnels	1000	270	Abandoned Mining Tunnels planetary feature	A network of deep tunnels beneath the planet's surface seem to have been its primary source of minerals. Millennia of cave-ins and rockfalls have left only a fraction of the tunnels traversable.
Flooded Reactor Pits	1000	270	Ancient Reactor Pits planetary feature	These deep pits appear to have once housed the planet's main energy production facilities. Over the eons, rain and flooding have filled the pits with murky water.
Massive Crevice	1000	270	Industrial Sector planetary feature	This region is divided by a vast crevice that cuts through what was once a dense urban zone. The ground here is extremely unstable, with frequent earthquakes and landslides.
Shattered Solar Array	1000	270	Immense Solar Array planetary feature	The shattered remains of some kind of colossal solar array. When it was still functional, it must have provided power to a significant portion of this planet.
Ruined Arcology	750 250	270	1-5 Minor Artifacts if Ancient Relics is installed Random Technology if Remnants homeworld	The Arcologies which cover this City-Planet lie in ruins. While the foundations are still solid, much of the decaying structure will need to be cleared before we can rebuild.

Homeworld blockers

Each empire homeworld start with at least three blockers that don't require technology to be removed. They reward either a Pop or a planetary feature when cleared. The blocker types can vary based on government and origin.

Blocker	Empire	Removal cost	Removal time	Rewards	Description
Sprawling Slums	Organic main species Hive Mind	300	120	1 Pop	This region is covered by vast shanty towns and slums filled with the poor and the outcast. It contributes nothing to society. Can be added by the Lost to Bureaucracy event.
Collapsed Burrows	Hive Mind authority	300	120	1 Pop	This site once housed extensive underground tunnel systems inhabited by the Hive, but was abandoned due to overexploitation of local resources and wildlife.
Unsupervised Settlement	Rogue Servitor civic	300	120	1 Pop	A pocket of organic society on this world still exists outside of machine supervision. Violence, disease and starvation runs rampant inside the settlement's walls, whose inhabitants have regressed technologically by several centuries.
Settled Ruins	Post-Apocalyptic origin	300	120	1 Pop	A scattered population of scavengers are eking out a desperate existence in the ruins of this once major city.
Lithoid Monoliths	Lithoid main species Calamitous Birth origin	1000	360	1 Pop if created by the same empire 300 Minerals if created by another empire	Incredibly rich outcroppings of minerals that seem to be comprised of petrified lithoids. If this planet is NOT empire homeworld, instead it costs 300.
Buried Lithoids	Calamitous Birth origin	1000	360	1 Pop if created by the same empire 300 Minerals if created by another empire	These lithoids were driven deep into the ground when they fell from orbit. Also appears on all worlds colonized by a Meteorite Colony Ship. If this planet is NOT empire homeworld, instead it costs 300 .
Industrial Wasteland	Organic main species	300	120	Random +2 Planetary Feature	This region is covered by ruined industrial complexes and toxic soil; detritus from a past age of progress. Can be added by the Lost to Bureaucracy event.
Abandoned Strip Mine	Machine Intelligence authority	300	120	Random +2 Planetary Feature	This area was heavily strip mined in the past, by older and more primitive machine models that unfortunately were not programmed to take future development of the region into account.
Radiation Zone	Post-Apocalyptic origin	300	120	Random +3 Planetary Feature	A region that was the target of numerous nuclear warheads. Though the radiation in this area has gone down since the initial impact, it is still unfit for habitation barring a major clean-up effort.
Great Pacific Garbage Patch	Earth	300	120	Pacific Algae Tracts Planetary Feature	A swirling miasma of plastic refuse covers a good portion of Earth's largest ocean.
Long-Abandoned City	Machine Intelligence authority	300	120	Metal Boneyards Planetary Feature	The crumbling remains of what must once have been a major population center on the planet. No traces of its past inhabitants remain.
Former Organic City	Determined Exterminator civic	300	120	Metal Boneyards Planetary Feature	The charred and irradiated ruins of what was once a major organic population center. Those buildings that still remain standing contain nothing but ashes now.
Silent Ruins	Driven Assimilator civic	300	120	Organic Landfills Planetary Feature	This once major settlement is now a crumbling ruin, occupied only by the decaying bodies of those organics that chose self-termination rather than be assimilated.
Battlefield Remnants	Determined Exterminator civic	300	120	Organic Landfills Planetary Feature	Tens of thousands of burnt warmachines and the twisted skeletal remains of organic soldiers litter the ground at this former battlefield. Residual pockets of radiation interfere with most electronics.
Decrepit Tunnels	Shattered Ring origin	500	360	400 Minerals 100 Exotic Gases, Rare Crystals or Volatile Motes	These ancient and decrepit tunnels have never been fully explored or cleared.
Ancient Rubble	Shattered Ring origin	250	360		Broken down machinery and other debris obstructs workers from utilizing the entire segment.
Malfunctioning Replicator Bay	Resource Consolidation origin	600	360	1 Replicator job	This replicator bay built into the Machine World is malfunctioning, producing endless piles of grappling clamps.

Removal cost and time reduction

The cost and the time to remove blockers can be reduced by the following factors:

Source	Cost	Time
World Shaper ruler trait	−15%	−15%
Environmental Engineer / Bulldozer governor trait	−25%	−25%
Nanite Entity governor trait	−40%	−40%
Volatile Land Clearance edict	−25%	−25%
Domination tradition tree adoption effect	−33%
Mastery of Nature ascension perk	−33%