Each planet has a small chance of containing a modifier that will affect the colony should the world be colonized. They may be positive, negative or mixed, identified by the color of the modifier's border.
Random anomalies can generate a great variety of planet modifiers but those usually do not have any effects.
Random modifiers[]
These modifiers can appear at random on any planet outside an empire's home system. If terraforming technology is researched some of them can be removed either via a special decision or by terraforming the planet. A planet can have up to 2 random modifiers
Modifier | Effects | Spawn chance | Removed by terraforming | Description | |
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Bleak |
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Life struggles to survive here, and while some clings to a tenacious existence it is anemic and sickly. | |
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Tidal Locked |
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This world is tidally locked around its star, meaning that one side always has daylight while the other is locked in eternal darkness. If life exists here, it is likely limited to the twilight regions where the two sides meet. | |
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Weak Magnetic Field |
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Although habitable, this world has a weak or non-existent magnetic field that offers little protection against cosmic radiation. | |
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Hazardous Weather |
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This world suffers from unstable weather patterns, with violent storms frequently appearing out of nowhere to wreak havoc on the surface. | |
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Hostile Fauna |
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This world has evolved extremely Hostile Fauna, and the surface is rife with lethal predators waiting to ambush their next meal. Their biology offers great research opportunities, however. | |
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High Gravity |
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This planet is unusually dense and so has uncomfortably high gravity. | |
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Low Gravity |
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This planet has an unusually low density and therefore much lower gravity than most planets of comparable size. | |
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Wild Storms |
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Spectacular electrical storms wrack this planet's atmosphere on a semi-regular basis. | |
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Abundant Geothermal Activity |
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This planet has many accessible geothermal hot spots. While this poses some engineering challenges, it also provides extra energy generation opportunities. | |
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Atmospheric Aphrodisiac | ![]() ![]() ![]() |
Something in the air of this planet seems to put people in the mood to reproduce. | ||
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Extensive Moon System | ![]() |
This gas giant has an unusually large amount of natural satellites. Hundreds of small moons and moonlets orbit the planet. | ||
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Lush |
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Life thrives here, the fauna is plentiful and the flora grows rapidly. | |
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Natural Beauty | ×3 if ![]() |
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The scenery on this planet is simply beautiful, anyone living on this planet will be constantly finding new wonders to behold. | |
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Rich Microflora |
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The soil of this world is home to a robust and highly productive microflora ecosystem, allowing for rich farming and research opportunities. | |
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Subterranean Wildlife |
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This planet has a thriving underground lithotrophic ecosystem. Herds of mild mineral-crunching subterranean creatures dig out large caverns, leaving them available for mining and colony use. The animals provide unique research opportunities for the miners who direct the packs to valuable mineral deposits. |
Minerals[]
A planet can only have one minerals modifier, which affects the planet's Minerals production. They cannot be removed by terraforming.
Modifier | ![]() |
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Spawn chance | Description | |
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Poor Quality Minerals | −25% | −3 |
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It is unknown if this planet simply formed this way, or if some unknown race once stripped it of its more valuable resources. However, we do know that the minerals present on this planet are of unusually poor quality. |
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High Quality Minerals | +15% | +4 |
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An abundance of high quality minerals in this planet's crust makes mining here a lucrative business. |
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Exceptional Quality Minerals | +25% | +8 | ×8 if File:High gravity.png![]() |
The exceptional quality of the minerals in this planet's crust provides a truly staggering opportunity for mining. |
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Carbon World | +15% |
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This world has been formed mostly out of carbon, and contains little oxygen. |
Terraforming candidates[]
Terraforming Candidates are modifiers that have a small chance to appear on uninhabitable planets and are always added to worlds ruined by a crisis. The modifiers allow the planet to be terraformed if the Climate Restoration technology has been researched. They do not appear if the required expansion is not installed. The chance for the a planet to have the modifier is scaled by the Habitable Worlds game setting.
Modifier | Planet | Chance | Required AP | Description | DLC | |
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Terraforming Candidate | ![]() |
1% | — | Though barren and devoid of life, this planet has water in frozen form and may once have been home to a thriving ecosystem. With the right technology, it could be terraformed into a habitable world. | |
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Frozen Terraforming Candidate | ![]() |
1% | ![]() |
Though cold to the point of being unable to sustain life, the frozen water on this world could allow us to terraform it into a habitable world, if we can find the right method. | ![]() |
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Toxic Terraforming Candidate | ![]() |
15% | ![]() |
Though the noxious gases on this world make it unfit for life, with enough effort they can be broken down into less lethal compounds, eventually allowing colonization. | ![]() |
Event triggering modifiers[]
The following random modifiers trigger an event roughly one year after the planet is colonized. The event can only trigger once per colony.
Modifier | Effects | Spawn chance | Removed by terraforming | Event | |
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Irradiated | ![]() |
Colony gains one of the following: | ||
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Unstable Tectonics |
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Colony gains ![]() ![]() ![]() | |
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Asteroid Impacts |
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Colony gains ![]() ![]() ![]() | |
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Atmospheric Hallucinogen | ![]() ![]() ![]() |
Empire gains a special project. Finishing it removes the modifier and has a 25% chance to add the ![]() ![]() ![]() ![]() | ||
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Asteroid Belt |
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Colony gains ![]() | |
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Strong Magnetic Field |
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Colony gains either +20% or −10% ![]() ![]() ![]() | |
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Titanic Life |
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Empire gains a special project. Finishing it either allows the recruitment of ![]() ![]() ![]() ![]() ![]() |
Unique modifiers[]
Unique modifiers will always appear on certain predetermined planets and cannot be found anywhere else.
Homeworld modifiers[]
Homeworld modifiers can only be added to the capital world of an empire by Origins when the game starts.
Doomsday[]
Empires that start with the Doomsday origin start with a homeworld modifier that goes through 4 stages. Each stage lasts roughly 10 years and increases the effects of the previous stage. It also prevents revolts from taking place.
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Description |
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I | +30% | −30% | −10 | −50% | +100 | This planet is doomed. It is tectonically unstable and will eventually explode. |
II | +60% | −50% | −15 | |||
III | +90% | −70% | −20 | |||
IV | +120% | −90% | −30 |
Guardian modifiers[]
Guardian modifiers are added through the Leviathan Parade Opportunity situations.
Event modifiers[]
The following modifiers can only be added by events.
Modifier | Effects | Event | Description | |
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Ancient Terraforming | ![]() |
Abandoned Terraforming Equipment event chain (Resume Process Special Project) |
Ancient terraforming techniques have turned this world into a lush paradise. |
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Abandoned Terraforming Project | Abandoned Terraforming Equipment event chain (Dismantle Equipment Special Project) |
This world was partially terraformed thousands of years ago, but the process was interrupted for unknown reasons. The result is a highly unstable climate system and biosphere. | |
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Subterranean Civilization | ![]() |
Subterranean Civilization event chain (Establish Communications Special Project) |
A subterranean alien civilization on this world enjoys a good relationship with the colonists on the surface, and both parties frequently engage in trade and cultural exchanges. |
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Subterranean Cities | ![]() |
Subterranean Civilization event chain (Preemptive Strike Special Project) |
The indigenous subterranean civilization that once lived on this world has been exterminated, and colonists are now free to expand into their abandoned underground cities. |
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Local Mycelial Network | ![]() |
Mushroom Picking event chain (excavated the Desiccated archaeological site) |
We have managed to harness local fungal networks to monitor our colonists on the planet. |
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On the Backs of Nemma | Unsteady Ground event chain (no special project) |
What were initially regarded as islands on this planet have instead turned out to be the backs of massive, live reptiles. This forces the inhabitants to take greater pains when parceling out housing. The inhabitants have decided to leave them alone. | |
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Magnetic Miracle | ![]() |
Magnetic Miracle (Investigate the Magnetic Mystery Special Project) |
Somehow the Magnetic Field of this planet is interfering with our computers, but rather than a simple disruption it is actually making them more efficient! |
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Filtered Atmospheric Hallucinogen | Crackdown (Hallucinogen Removal Special Project) |
The air of this planet once contained a natural hallucinogen. Now, with the aid of massive filters, the effect has been diluted. This has reduced the benefits it once gave, but has also eliminated the negatives. | |
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Uncertain History | What happened here? (40% chance) |
The people of this planet are troubled by not knowing what caused the disaster which befell it long ago, and are driven to try to find out. | |
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Delicious Titans | Titanic Life![]() ![]() |
Harvesting the Titanic life for research data has had an unexplained side benefit: They taste great! | |
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Engineered Nature | ![]() |
Engineered Beauty | This planet has been engineered to provide both form and function to its inhabitants |
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Second Home | Homeworld II | This planet bears an uncanny resemblance to its creator's homeworld. | |
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Paradise Made | Paradise is a Place | This planet was terraformed to look like its creators' promised land. | |
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Surviving Infrastructure | ![]() |
Surviving Infrastructure | There is still a significant amount of infrastructure left on this world, built by its original inhabitants before they destroyed themselves in a nuclear war. This will aid in the construction of new buildings. |
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Tamed Nanite Swarm | On the Origin of Nanites (Tame the Swarm special project) |
A self-evolved nanite swarm was domesticated on this planet and now helps the colonists with their day-to-day life. | |
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Zen World | Interpretation Signal (Pure, Dry Landscaping special project) |
Vast ripples appear in the regolith here. Whatever their origin, they exude a calming influence. | |
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Loop Temple Visitor Center | ![]() |
Horizon Signal event chain | Cheery, efficient staff guided tours past primordial sigils bright under floodlights and marked with helpful plaques. |
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Loop Temple Pilgrims' Way | ![]() |
Horizon Signal event chain![]() ![]() |
Once again, the basalt arches whisper with the hushing of feet and the echo of prayers. |
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Machine Interface Museum | ![]() |
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A specialized center where biological assistants can experience the thrill of doing meaningless tasks to feel useful. |
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Superflare Shielding | ![]() |
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This planet's populace is shielded from the harmful effects of it's sun's superflare activity. |
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Heavy Metal | ![]() |
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Ever since the MegaCorpse incident it has just been somehow easier to create metal on this planet. |
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C.A.R.E Interactive Interface | ![]() |
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The ancient C.A.R.E Interactive Interface is working at full capacity on this planet - with some modern improvements, of course. |
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Edible Machines | ![]() |
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While they may not have resulted in a Singularity, these thinking machines have proven surprisingly delicious. |
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Industrial Network | ![]() |
Complex shipping pipelines of Factorator Shuladun's making: highly efficient, but at the cost of the population's health. | |
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Vanity Palace | ![]() |
This monumental building is as grotesque as it is fascinating. |
Anomaly modifiers[]
Anomaly modifiers can only be added by random anomalies.
Archaeological site modifiers[]
Event modifiers can only be added by Archaeological site outcomes.
Modifier | Effects | Archaeological site | Description | |
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The Memorex | ![]() |
The Memorex Enhanced Learning Program trains the population to better fit the needs of the empire, as they sleep, improving their output significantly. | |
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The Sentinels | ![]() |
Ancient guardians watch over the planet inspiring unity and spirituality in our people. | |
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Cheap Thrills | ![]() |
The Evermore, originally a virtual realm in which the digitized consciousnesses of aliens lived in eternal bliss, has been repurposed into a playground for the masses. | |
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Cheap Thrills Evil | ![]() |
The Evermore, originally a virtual realm in which the digitized consciousnesses of aliens lived in eternal bliss, has been repurposed into a playground for the masses. | |
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The Evermore | ![]() |
In the Evermore paradise everyone is locked in a never-ending abstract board game centered on galactic domination through the accumulation of legumes. It makes for an endlessly dull, albeit informative, source of anthropological data. | |
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Ever More Joy | Defeated and purged by the ![]() |
This world's population can live out their fantasies together with the digitized population in the Evermore paradise. | |
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Ever More Science | ![]() |
Defeated and purged by the ![]() |
The digitized population residing within the Evermore have been assigned to assist with scientific research. |
Other modifiers[]
Modifier | Effects | Requirements | Description | DLC | |
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Colonial Remains |
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Some remnants of our former colony remain. Using them as a base will make it easier to re-colonize this planet. | ![]() ![]() | |
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Invasive Xenoflora |
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Seeds from another land have found fertile soil here, supplanting the local vegetation. | ![]() | |
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Spreading Invasive Xenoflora |
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Seeds from another land have found fertile soil here, supplanting the local vegetation. | ![]() | |
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Overwhelming Invasive Xenoflora |
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Seeds from another land have found fertile soil here, supplanting the local vegetation. | ![]() | |
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Ancient Trade Route | ![]() |
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The deciphering of ancient trade route charts have revealed this place to be of greater mercantile import than first assumed. | ![]() |
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Alloy Hyperfabricator | ![]() |
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Placed in a foundry this mysterious device increases the efficiency of alloy production. | ![]() |
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Energy Accelerator | ![]() |
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When added to a generator of sufficient size this device uses an unknown and seemingly impossible technique to create additional energy over and above the normal output. | ![]() |
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Incredibly Boring Relic | ![]() |
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This strange machine can somehow summon minerals up out of the ground without affecting the surrounding material. | ![]() |
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Numistic Magnetostrips Distributed | ![]() |
Caravan deal | Created by The Numistic order, these strips are applied to our planetside units, tuning them to planet's magnetosphere. The process helps align their ions, thereby lowering their energy upkeep needs. | ![]() |
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Lithoid Crater | ![]() |
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This large crater is the result of a Lithoid-bearing meteorite slamming into the planet. | ![]() |
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Humble Monument | ![]() |
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This modest monument is a tribute to our glorious leader, who elevated our nation to the stars. | ![]() |
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Rich Monument |
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This opulent monument commemorates the first settlers who, among with our glorious leader, tamed these wild and bountiful lands. | ![]() | |
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Residential Monument |
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This residential monument demonstrates the wisdom of our beloved ruler. It is both a piece of art and a comfortable place to live. | ![]() | |
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Overgrowth | Astrocreator Azaryn terraforming ability | This planet was terraformed by one of Astrocreator Azaryn's Nuclei. | ![]() |
References[]
Exploration | Exploration • FTL • Anomaly • Archaeological site • Relics • Pre-FTL species • Fallen empire • Events • Spaceborne aliens • Enclaves • Guardians • Marauders • Caravaneers |
Celestial bodies | Celestial body • Colonization • Terraforming • Planetary features • Planet modifiers |
Species | Species • Traits • Population • Pop modification • Species rights • Ethics • Leader |
Governance | Empire • Origin • Government • Civics • Policies • Edicts • Factions • Technology • Traditions • Situations |
Economy | Resources • Planetary management • Districts • Buildings • Holdings • Jobs • Designation • Trade • Megastructures |
Diplomacy | Diplomacy • Relations • Galactic community • Federations • Subject empires • Intelligence • AI personalities |
Warfare | Warfare • Space warfare • Land warfare • Starbase • Ship • Ship designer • Crisis |
Others | The Shroud • L-Cluster • Unique systems • Preset empires • AI players • Easter eggs |