Traits

This page is about species traits. For leader traits see leader traits.

Version

This article has been verified for the current PC version (3.10) of the game.

Stellaris 3.11 Species Traits Tier List-2

Stellaris Traits Tier List - 3.5 & NEW Overtuned

Stellaris Machine Traits Tier List

Stellaris 3.2 Trait Tier List - Biological-2

Traits represents a species' innate functions, abilities, and personality. A species's traits are selected at the start of a new game, but a species or certain pops of a species can adapt new traits through genetic engineering or rare events. Traits affect a wide variety of areas, from population growth rate to resource output to leader lifespan or even how pops are viewed by each other. Most traits come in mutually exclusive groups that affect the same aspect of the species, such as Nomadic and Sedentary, and each species template can only have one such trait from the group at any given time. These groups include traits with opposite effects, as well as stronger variants of a trait. Though traits are initially decided at a species level, individual pops of the same species can end up with different traits with genetic modification, producing new subspecies or variants. This rarely happens without player intervention.

Traits are mostly fixed at the start of the game. Altering traits during the game is generally possible only later in the game through some select events or by using genetic engineering. Certain Biology (for Biological species) and Industry (for Robotic species) technologies and Ascension Perks add additional Trait Points that can be used to alter all or some of a species' Pops; modifications can range from altering their planet Habitability to adding an additional positive trait or removing a negative one.

Some traits affect how strongly a pop is attracted to certain factions.

Biological traits

Traits are purchased from a points pool, with 2 points being available at the start of the game. Some traits are negative and have a negative cost, refunding points into the pool. Each species is limited to a maximum of 5 traits; traits that cost 0 points do not count against this limit but can only be acquired from certain origins, events, or ascension perks.

Initial traits

Initial traits are available when first creating a species. They can all be changed later via genetic modification. Initial traits can be both positive and negative, with the two being mutually exclusive. Traits that affect Happiness cannot be added to species with the Hive-Minded trait.

The Adaptive and Rapid Breeders traits are not normally available to species with the Lithoid trait but can be added with the Genetic Resequencing tradition.

Positive traits				Negative traits					DLC
Trait	Effects		Slave Price	Trait	Effects		Slave Price
				Decadent	−10% Worker Happiness −10% Slave Happiness	−1	−200
Adaptive	+10% Habitability	2	+500	Nonadaptive	−10% Habitability	−2	−200
Extremely Adaptive	+20% Habitability	4	+1000
Agrarian	+15% Food from Jobs	2	+500
Charismatic	+20% Amenities from Jobs	2	+500	Repugnant	−20% Amenities from Jobs	−2	−200
Communal	−10% Pop Housing Usage	1	+500	Solitary	+10% Pop Housing Usage	−1	−200
Conformists	+30% Governing Ethics Attraction	2	+500	Deviants	−15% Governing Ethics Attraction	−1	−200
Conservationist	−10% Pop consumer goods upkeep	1	+500	Wasteful	+10% Pop consumer goods upkeep	−1	−200
Docile	−10% Empire Size from Pops	2	+500	Unruly	+10% Empire Size from Pops	−2	−200
Enduring	+20 years Leader Lifespan	1	+500	Fleeting	−10 years Leader Lifespan if Biological −25 years Leader Lifespan if Lithoid	−1	−200
Venerable	+80 years Leader Lifespan	4	+1000
Industrious	+15% Minerals from Jobs	2	+500
Ingenious	+15% Energy Credits from Jobs	2	+500
Intelligent	+10% Research from Jobs	2	+500
Natural Engineers	+15% Engineering Research from Jobs	1	+500
Natural Physicists	+15% Physics Research from Jobs	1	+500
Natural Sociologists	+15% Society Research from Jobs	1	+500
Nomadic	+15% Pop growth from immigration −25% Resettlement Cost	1	+500	Sedentary	−15% Pop growth from immigration +25% Resettlement Cost	−1	−200
Quick Learners	+10% Leader Experience Gain	1	+500	Slow Learners	−10% Leader Experience Gain	−1	−200
Rapid Breeders	+10% Pop Growth Speed	2	+1000	Slow Breeders	−10% Growth Speed	−2	−1000
Resilient	+50% Defense Army Damage	1	+500
Strong	+20% Army Damage +2.5% Worker and Menial Drone Pop Resource Output	1	+1000	Weak	−20% Army Damage −2.5% Worker and Menial Drone Pop Resource Output	−1	−1000
Very Strong	+40% Army Damage +5% Worker and Menial Drone Pop Resource Output	3	+2000
Talented	−10% Leader Upkeep −1 Leader Maximum Negative Traits	1	+500
Thrifty	+25% Trade value from Jobs	2	+500
Traditional	+10% Unity from Jobs	1	+500	Quarrelsome	−10% Unity from Jobs	−1	−200
Incubators	Pop Growth $\definecolor{horange}{rgb}{1,0.64706,0} = \begin{cases} \mathbf{\color{Green} +30\%} & \text{if } \text{planet } pops \leq 7 \\ \mathbf{\color{Green} +30\%}, \mathbf{\color{horange}- 1\%} / pop & \text{if } 7 < pops < 47 \\ \mathbf{\color{Red} -10\%} & \text{if } pops \geq 47 \\ \end{cases}$	2	+2000
Noxious	+0.02 Happiness per non-Noxious Pop +5% Happiness +50% Army Damage +30% Species Minimum Habitability −30% Species Habitability Cap +10% Pop Housing Usage −0.01 Happiness per Noxious Pop	1	−500
Inorganic Breath	+0.02 Monthly Exotic Gases per Pop +50% Pop Upkeep	3	+1000
Existential Iteroparity	+30% Pop Growth during War and Crisis	2	+1000	Psychological Infertility	−30% Pop Growth during War and Crisis	−2	−1000
				Jinxed	+1 Leader Maximum Negative Traits	−1	−500

Botanical traits

Botanical traits are only available to species with the Fungoid or Plantoid archetype or empires that researched the Botanical Transgenesis technology. Radiotrophic is also available to species with the Lithoid archetype, or for all empires that completed the Radioactive Flora terraforming event.

Type	Effects	Excludes		Slave Price	Description
Phototrophic	Replaces half of the Food upkeep with Energy	Radiotrophic Cave Dweller Voidling	1	+1000	This species is sustained by a combination of both food and sunlight.
Radiotrophic	Replaces half of the Food or Minerals upkeep with Energy No Energy upkeep on Tomb Worlds +10% Tomb World Pop Growth Speed +10% Tomb World Habitability	Phototrophic Voidling	2	+1500	This species is sustained by a combination of both food and low-energy radiation, and as such can thrive on the most inhospitable of worlds.
Budding	+0.02 Monthly Organic Pop Assembly per Pop	Slow Breeders Rapid Breeders Incubators Clone Soldier Clone Soldier Ascendant Necrophage Polymelic	2	+2000	This species is capable of reproduction by budding, in addition to the more usual fertilization of seeds or spores.
Invasive Species	+5% Habitability per negative trait +5% Pop Growth Speed per negative trait	All positive non-botanical traits	2	0	Rapid reproduction. High dispersal ability. Zero useful capabilities.

Silicate traits

Silicate traits are only available to species with the Lithoid archetype or empires that researched the Silicate Transgenesis technology. The Lithoid trait is always present on Lithoid species.

Type	Effects	Excludes		Slave Price	Description
Lithoid	−25% Pop Growth Speed −25% Pop assembly speed +50% Habitability +50% Army health +50 years Leader Lifespan Consumes Minerals instead of Food	Agrarian Extremely Adaptive Fertile Delicious Robust Nonadaptive Slow Breeders	0	0	This species has a silicon based biology, and consumes minerals rather than food. They are tougher than traditional organics and have slower metabolisms, making them long lived but slow to reproduce.
Gaseous Byproducts	+0.01 Monthly Exotic Gases per Pop	Scintillating Skin Volatile Excretions Drake-Scaled	2	+1000	The metabolic processes of this species cause regular venting of gases useful to industry.
Scintillating Skin	+0.01 Monthly Rare Crystals per Pop	Gaseous Byproducts Volatile Excretions Drake-Scaled	2	+1000	The outermost layer of this species is studded with sparkling crystals and gemstones that occasionally flake off.
Volatile Excretions	+0.01 Monthly Volatile Motes per Pop	Gaseous Byproducts Scintillating Skin Drake-Scaled	2	+1000	The highly compressed spoor created by this species is unstable and contains an unbelievable amount of power.
Crystallization	+0.02 Monthly Organic Pop Assembly per Pop	Slow Breeders Rapid Breeders Incubators Clone Soldier Clone Soldier Ascendant Necrophage	2	+2000	With crystalline growths, this species is capable of generating self replicating lattices of themselves, in addition to the more usual reproductive methods.

Origin traits

Origin traits can only be given by certain empire Origins.

Type	Effects	Excludes		Slave Price	Inherit chance	Origin	Removable	Description	DLC
Serviles	+10% Happiness +10% Resources from Jobs Cannot be employed in Ruler or Specialist Jobs Generate leaders	Zombie Intelligent Erudite Natural Physicists Natural Sociologists Natural Engineers	1	+500	33%	Syncretic Evolution		This species evolved alongside a second, more advanced species. Never particularly intelligent to begin with, selective breeding for physical prowess and docility has reduced them to servile proles.
Clone Soldier	+50% Governing Ethics Attraction +50% Army Damage −40 years Leader Lifespan Commanders gain the Clone Army Commander trait Cannot be genetically modified Cannot reproduce naturally Decline without sufficient Ancient Clone Vat buildings	Rapid Breeders Slow Breeders Budding Polymelic Vat-Grown		0	0%	Clone Army		Engineered for compliance and war: short-lived, unable to reproduce naturally, and very efficient.
Survivor	+10 years Leader Lifespan +70% Tomb World Habitability		0	+500	33%	Post-Apocalyptic		This species has survived the horrors of a nuclear apocalypse. Their capacity for thriving in the most inhospitable circumstances should not be underestimated.
Void Dweller	+15% Pop Output on Habitats −15% Pop Output on Planets −30% Pop Happiness on Planets		0	+500	33%	Void Dwellers		This species thrives in orbital habitats, with an instinctive ability to efficiently navigate their maze-like corridors and complicated architecture. However their weakened immune systems do not respond well to a planetary environment.
Necrophage	+80 Years Leader Lifespan −50% Pop Upkeep +5% Resources from Ruler and Specialist Jobs −10% Resources from Worker Jobs −75% Pop Growth Speed −50% Pop assembly speed	Budding Polymelic Vat-Grown	0	0	0%	Necrophage		This species of near-immortals procreates by consuming pops of other species.
Cave Dweller	+50% Species Minimum Habitability +15% Minerals from Jobs −20% Biological Pop Growth Speed +10% Empire Size from Pops	Phototrophic Aquatic	0	+500	0%	Subterranean		This species thrives under the surface of any planet they can find, at the cost of population growth.
Perfected Genes	+25 Years Leader Lifespan −20% Leader Experience Gain	Fleeting Weak	0	0	0%	Under One Rule		Millennia of eugenics and wars have led to the creation of an extremely resilient species.

Overtuned traits

Overtuned traits can only be added or removed by empires with the Overtuned origin. Empires with the Genetic Resequencing tradition can also remove them. Overtuned traits provide bonuses similar to initial traits for less points but also reduce leader lifespan.

Type	Bonuses (doubled by Damn the Consequences edict)	Leader Lifespan		Slave Price	Description
Augmented Intelligence	+10% Research from Jobs	−10	1	+1000	More brains equals more brain power. Extra thinking organs have been added in strategic areas of the recipient's body to ensure maximum cognitive capacity. Even if they don't always agree.
Crafted Smiles	+15% Amenities from Jobs	−10	1	+1000	Slightly shifted facial features, a mix of enhanced and slackened muscular development - and of course outside chemicals - have created the perfect smile. Forever.
Dedicated Miner	+15% Minerals from Jobs	−10	1	+1000	Supreme hand-eye coordination, near endless endurance and self-purifying lungs have created entire crack teams of miners. Sadly they get brittle without sunlight.
Expressed Tradition	+10% Unity from Jobs	−10	1	+1000	Fanaticism on demand: faith is merely a cocktail of hormones, one we have perfected. Where that faith eventually leads is a matter of subsequent guidance.
Farm Appendages	+15% Food from Jobs	−10	1	+1000	The more appendages, the higher the farming output. Some appendages can even operate while their host is asleep. Rumors of hosts strangled by their new limbs have been deemed unfounded in our latest investigation.
Gene Mentorship	+25% Leader Experience Gain	−10	1	+1000	By combining genetically redesigned 'instinctive knowledge' and outside chemical stimuli, we have succeeded in vastly accelerating our learning capacities. Although it has resulted in some extremely paranoid individuals.
Juiced Power	+40% Army Damage +5% Worker and Menial Drone Pop Resource Output	−10	1	+1000	Adrenaline released on demand and hyper-potent growth hormones have led to a massive increase in strength. Just ignore the occasional internal tearing.
Low Maintenance	−10% Pop consumer goods upkeep	−10	1	+1000	Reduced consumption, excretion, and rest rates have resulted in twice the beings for half the price. However, demand for protein-rich meals has increased.
Spliced Adaptability	+20% Habitability	−10	1	+1000	A few genetic snips and slices here and there and they can survive nearly anywhere. The process comes with an acceptable number of deaths from side effects.
Technical Talent	+15% Energy from Jobs	−10	1	+1000	Extra internal organs grant a vastly increased innate sensitivity to electricity and magnetic fields. Reports of recipients hearing screams and voices from the reactors should be ignored.
Elevated Synapses	+20% Research from Jobs −25% Leader Upkeep −1 Leader Maximum Negative Traits	−30	2	+2000	As a computational device, a brain does not run at 100% capacity. However, we have gone beyond the standard usage. If issues are encountered, try turning it off and on again.
Pre-Planned Growth	+30% Pop Growth Speed −10% Pop Housing Usage	−30	2	+2000	Scheduled fertility, scheduled interest, scheduled compatibility. Population growth on demand for a strong and stable population - with a few minor edits here and there. Jealous individuals are to be directed to the nearest Fertility Center for mandatory training.
Excessive Endurance	+5% Resources from Jobs +30% Habitability	−30	3	+2000	The greatest in adaptability genes have been hyper-expressed in these specimens. Mutation rates around 30% indicate a somewhat stable and successful experiment.

Pre-sapient traits

Pre-sapient species have exclusive traits that cannot otherwise be chosen when creating or modifying a species. They retain these traits after being uplifted as a sapient species and do not cost any trait points. The Forcefully Devolved trait can only be added to species that were turned pre-sapient with the Devolving Beam colossus weapon.

Type	Effects	Description
Conservative	+5% Happiness +25% Governing Ethics Attraction −33% Leader Experience Gain	Members of this species often prefer old wisdom over new experiences.
Earthbound	+10% Energy from Jobs +50% Defense Army Damage	Members of this species are very possessive of the planets they call home.
Irradiated	+100% Tomb World Habitability +30 Years Leader Lifespan	This species has evolved to thrive in environments subject to extremely high levels of background radiation.
Natural Intellectuals	+5% Unity from Jobs +10% Research from Jobs −10% Minerals from Jobs	Members of this species are more philosophically inclined than most.
Proles	+10% Army Damage +10% Minerals from Jobs +10% Food from Jobs −15% Research from Jobs	This species has traditionally shunned intellectual pursuits in favor of physical labor.
Starborn	+25% Pop Growth from Immigration −25% Resettlement Cost +10% Habitability	This species has always, consciously or not, longed to traverse the void between the stars.
Forcefully Devolved	−10% Army Damage −10% Resources from Jobs −10% Pop Growth Speed −25% Leader Experience Gain	The brutal devolution process endured by this species had a strong negative impact upon their abilities.

Special traits

These traits are required for special cases of species and cannot be removed from the creation menu.

The Hive-Minded trait can only be added by hive mind empires and can only be removed by empires that are not hive minds. Pops with this trait in an non-Hive Mind empire will slowly die while pops without the Hive-Minded trait in a Hive Mind empire can only be displaced, purged or used as livestock.

Special traits that cost trait points can be removed via the Genetic Resequencing tradition. Special traits that do not cost trait points have a fixed chance of being inherited by hybrid species.

Type	Effects	Excludes		Slave Price	Inherit chance	Requirements	DLC
Self-Modified	Cannot colonize if not primary species Cannot be resettled Cannot be removed		0	0	0%	A New Species event
Nivlac	+50% Habitability +15% Pop Growth Speed		2	+100	random	Impossible Organism event species
Bioadaptability	+5% Habitability		0	+500	33%	Orbital Speed Demon event (Green)
Limited Regeneration	+10% Army Damage +10 Years Leader Lifespan		0	+250	33%	Orbital Speed Demon event (Blue)
Social Pheromones	−5% Pop Housing Usage		0	+250	33%	Orbital Speed Demon event (Red)
Not of this World	−10 Years Leader Lifespan +10% Pop Upkeep		0	0	0%	Plight of the Beta-Universe situation species
Cybernetic	+10% Army Damage +20% Habitability +40 Years Leader Lifespan	Latent Psionic Psionic	0	+1500	0%	Cybernetic tradition tree adoption Driven Assimilator civic Keepers of Knowledge fallen empire
Psionic	+10% Research from Jobs +10% Unity from Jobs +5% Happiness Leaders have the Psychic trait	Cybernetic	0	+1500	25%	Great Awakening tradition Psi-Inoculate Pops decision Holy Guardians fallen empire Ketling Star Pack pops Racket Industrial Enterprise pops Extradimensional species
Latent Psionic	+10% Research from Jobs +5% Unity from Jobs Leaders have a chance to gain the Psychic trait	Cybernetic	0	+1500	25%	Psionic tradition tree adoption Teachers of the Shroud origin Shroud Preacher official trait
Bloomed	+10% Resources from Jobs on Gaia Worlds +10% Pop Growth Speed on Gaia Worlds −10% Pop Amenities Usage on Gaia Worlds −10% Pop Housing Usage on Gaia Worlds		0	+2000	0%	Gaia Seeders - Final Phase building
Hive-Minded	Not affected by Happiness +20 Years Leader Lifespan −10 Years Leader Initial Age	Conformists Thrifty Decadent Deviants	0			Hive Mind
Clone Soldier Ascendant	+50% Governing Ethics Attraction +20% Habitability +40% Resources from Ruler Jobs +25% Resources from Specialist Jobs +75% Army Damage +25% Army Health Commanders gain the Ascendant Clone Army Commander trait Cannot be genetically modified Cannot reproduce naturally Decline without sufficient Ancient Clone Vat buildings	Rapid Breeders Slow Breeders Budding Polymelic Vat-Grown		+500		Genetic Crossroads event
Clone Soldier Descendant	+20% Governing Ethics Attraction +20% Army Damage Commanders gain the Descendant Clone Army Commander trait	Polymelic Vat-Grown	0	+1000	random	Genetic Crossroads event
Docile Livestock	+30% Pop Growth Speed +10% Unity from Jobs −50% Energy from Jobs −75% Research from Jobs Cannot generate Leaders Cannot be employed in Ruler or Specialist Jobs Not affected by Happiness	Intelligent Erudite Natural Physicists Natural Sociologists Natural Engineers	0	0	random	Wild Eukaryotes event species
Brain Slug Host	+10% Research from Jobs +10% Unity from Jobs −25% Pop Growth Speed		0	0	0%	Neural Symbiosis event
Unlifted	−60% Research from Jobs	Intelligent	0	−150	0%	Enigmatic Cache event
Somewhat Uplifted	+10% Research from Jobs	Intelligent	0	+500	0%	Enigmatic Cache event
Uplifted	+10% Research from Jobs +10% Leader Experience Gain	Slow Learners Erudite Nerve Stapled	0	+750	0%	Enigmatic Cache event
Numistic Administration	+33% Trade Value from Jobs +33% Trade Value from Living Standards		1	0	0%	Numistic Order pops
Zombie	−100% Pop Upkeep −25% Resources from Jobs Not affected by Happiness Cannot generate Leaders Cannot be employed in Ruler or Specialist Jobs Cannot colonize Cannot reproduce naturally	Serviles Nerve Stapled	0	+500		Reassigner jobs
Aquatic	+20% Ocean Habitability −10% Housing Usage on Ocean Worlds +10% Worker Output on Ocean Worlds −20% Dry and Frozen planet Habitability +30% Housing Usage on Dry and Frozen planets Cannot change habitability without removing the trait Hydrocentric ascension boosts this trait's effects by 50%		2	0	random	Ocean Preference trait Anglers civic Ocean Paradise origin Genetic Resequencing tradition
Stargazer	+10% Habitability +25% Pop Growth from Immigration −25% Resettlement Cost		0			Stargazers civic
Plasmic	+15% Habitability +15% Pop Growth Speed −15% Pop Housing Usage		0	+2500	random	Plasmic Core relic triumph effect
Extradimensional	+15% Habitability +50% Leader Lifespan +0.5 Monthly Physics Research per Pop −25% Pop Growth Speed +50% Pop Upkeep		0	0	0%	Extradimensional species

Cyborg traits

Cyborg traits can only be added to species with the Cybernetic trait if the empire has the Integrated Anatomy tradition.

Positive Traits				Negative Traits
Trait	Effects		Slave Price	Trait	Effects		Slave Price
Double Jointed	−10% Pop Housing Usage +15% Pop Growth from Immigration −25% Resettlement Cost +0.3 Energy Upkeep	1	+1500	Bulky	+10% Pop Housing Usage −15% Pop Growth from Immigration +25% Resettlement Cost	–2	–500
Durable	–0.5 Pop Amenities Usage +0.3 Energy Upkeep	1	+750	High Maintenance	+0.5 Pop Amenities Usage	–2	–150
Efficient Processors	+5% Resources from Jobs +0.3 Energy Upkeep	2	+500
Enhanced Memory	−25% Leader Upkeep −1 Leader Maximum Negative Traits +0.3 Energy Upkeep	1	+750
Harvesters	+10% Food from Jobs	1	+750
Learning Algorithms	+10% Leader Experience Gain −10% Leader Upkeep −1 Leader Maximum Negative Traits +0.3 Energy Upkeep	1	+1500	Neural Limiters	–10% Leader Experience Gain	–2	–250
Logic Engines	+10% Research from Jobs +0.3 Energy Upkeep	1	+750
Loyalty Circuits	+10% Happiness +0.3 Energy Upkeep	1	+500
Power Drills	+10% Minerals from Jobs	1	+750
Streamlined Protocols	–10% Empire Size from Pops +0.3 Energy Upkeep	1	+750	High Bandwidth	+10% Empire Size from Pops	–2	–150
Superconductive	+10% Energy Credits from Jobs	1	+750
Trading Algorithms	+25% Trade Value from Jobs +0.3 Energy Upkeep	1	+500
				Power Intensive	+1 Energy Upkeep (Unless Voidling)	–1	–250

Biological ascension traits

Those advanced traits are made available for genetic modification with the Genetic Resequencing tradition. Biological ascension traits are only half as likely as standard traits to be inherited by hybrid species. The Exotic Metabolism trait also requires the Toxoids DLC.

Type	Effects	Excludes		Slave Price	Description
Delicious	+2 Food from Livestock	Lithoid	2	+1000	This species has the curious evolutionary adaptation of being highly nutritious when eaten.
Felsic	+2 Minerals from Livestock	Lithoid	2	+1000	This species has been engineered to be especially mineral-rich.
Natural Machinist	+10% Alloys from Jobs +10% Consumer Goods from Jobs		2	+2000	This species has been engineered to have an incredible knack at working with machinery.
Nerve Stapled	+5% Resources from Jobs Cannot be employed in Ruler, Specialist or Complex Drone jobs Cannot generate Leaders Not Affected by Happiness Can't join a faction	Zombie Erudite Intelligent Natural Physicists Natural Sociologists Natural Engineers Talented Communal Solitary	3	+1500	Unessential neural pathways relating to self-preservation and free-will are severed, creating a docile and obedient client species.
Vat-Grown	+25% Organic Pop Assembly Speed −10% Pop Housing Usage Cannot reproduce naturally	Fertile Clone Soldier Clone Soldier Ascendant Clone Soldier Descendant Necrophage Existential Iteroparity Rapid Breeders Slow Breeders Psychological Infertility	2	+1500	Artificially grown in cloning vats, the natural reproductive abilities of this species have been negatively impacted.
Erudite	+20% Resources from researcher category jobs −10% Leader Upkeep −1 Leader Maximum Negative Traits Erudite Leaders have special traits	Intelligent Nerve Stapled Uplifted	4	+2000	Biological engineering has unlocked previously dormant parts of this species' brains, greatly increasing mental acuity.
Fertile	+30% Pop Growth Speed −10% Pop Housing Usage	Lithoid Polymelic Vat-Grown Rapid Breeders Slow Breeders Incubators	4	+2000	The natural fecundity of this species has been dramatically enhanced through aggressive physical and behaviorial sculpting.
Robust	+30% Habitability +5% Resources from Jobs +50 years Leader Lifespan	Lithoid Extremely Adaptive Adaptive Nonadaptive	4	+2000	Bio-Optimized organs with redundant functions have made this species extraordinarily resistant to environmental hazards and disease.
Exotic Metabolism	+50 years Leader Lifespan +0.125% Exotic Gas Upkeep +25% Pop Growth Speed +25% Habitability		1	+750	A metabolism based on exotic - and expensive - gases has vastly enhanced this species' abilities.

Leviathan traits

Leviathan traits can only be added by empires that researched the Leviathan Transgenesis technology and defeated certain guardians.

Type	Effects	Excludes		Slave Price	Guardians	Description
Drake-Scaled	+50% Army health +0.025 Monthly Alloys per Pop	Gaseous Byproducts Scintillating Skin Volatile Excretions	3	+1000	Ether Drake Shard Sky Dragon	This species has the genetic material from a stellar dragon spliced into its DNA. As such, they shed scales which can be recycled into useful alloys.
Polymelic	+0.05 Monthly Organic Pop Assembly per Pop	Fertile Clone Soldier Clone Soldier Ascendant Clone Soldier Descendant Necrophage Budding Rapid Breeders Slow Breeders	3	+1500	Tiyanki Matriarch	This species has added genetic material from the Tiyanki Matriarch into their DNA sequence. This has granted them rapid asexual reproduction, as well as a few unexpected tentacles.
Voidling	+20% Species Minimum Habitability Consumes Energy instead of Food or Minerals	Phototrophic Radiotrophic	3	+1500	Voidspawn	This species has the genetic material from the Voidspawn spliced into its DNA. Subsisting off cosmic radiation, they are highly resistant to hostile environments.

Climate preference traits

Each organic species has a climate preference trait that determines their base Habitability on the various types of planets, usually that corresponding to the type of their homeworld. Habitability traits can be changed through genetic modification, but a pop can never have more than one Habitability trait. The Habitability of other celestial body types is unaffected by these traits. Habitability cannot be changed if the species has the Aquatic trait.

Preference	Climate	80% Habitability	60% Habitability	20% Habitability
Arid	Dry	Arid	Desert Savannah	Alpine Arctic Tundra Continental Ocean Tropical
Desert	Dry	Desert	Arid Savannah
Savannah	Dry	Savannah	Arid Desert
Alpine	Frozen	Alpine	Arctic Tundra	Arid Desert Savannah Continental Ocean Tropical
Arctic	Frozen	Arctic	Alpine Tundra
Tundra	Frozen	Tundra	Alpine Arctic
Continental	Wet	Continental	Ocean Tropical	Arid Desert Savannah Alpine Arctic Tundra
Ocean	Wet	Ocean	Continental Tropical
Tropical	Wet	Tropical	Continental Ocean

Exotic climate preferences

Exotic climate preferences can only be obtained through Origins, conquest of a unique species, the A New Species event on a matching celestial body or when the Omnicodex relic creates a species on a matching celestial body.

Preference	Habitability on native climate	Habitability on regular planets	Sources other than the Omnicodex and A New Species event
Tomb World Preference	80% Tomb World	60%	Pre-FTL or pre-sapient species inhabiting a Tomb World Horizon Signal event
Gaia World Preference	100% Gaia World	0%	Primitive or pre-sapient species inhabiting a Gaia World Life-Seeded Origin Baol pops created by the Nu-Baol Life Seeding decision The Unexpected Mutations Terraforming event
Ring World Preference	100% Ring World	0%	Shattered Ring Origin Sanctuary pre-FTL civilizations
Habitat Preference	100% Habitat	0%	Void Dwellers Origin Marauder pops Enclave pops
Hive World Preference	100% Hive World	0%
Machine World Preference	100% Machine World	0%
Ecumenopolis Preference	80% Ecumenopolis	0%
Relic World Preference	80% Relic World	0%

Robot traits

All robot species have either the Mechanical or the Machine trait. Mechanical Pops can exist within Machine Intelligence empires via conquest but Machine Pops cannot exist outside Machine Intelligence empires. All such species can then be given new traits through Robomodding once the Machine Template System technology is researched, a few of them being restricted to Mechanical or Machine species. Robotic traits can be both positive and negative, which are mutually exclusive with each other, and both of them can be added and removed at will once the technology to enable Robomodding becomes available.

Empires that are not Machine Intelligence must research higher tiers of robot technologies before they can add some of the more powerful traits to Mechanical Pops.

Positive Traits				Negative Traits				Requirements
Trait	Effect		Slave Price	Trait	Effect		Slave Price
Machine	Not affected by Happiness +200% Habitability Immortal Leaders	0	0					Machine Intelligence
Mechanical	Not affected by Happiness unless the Artificial Intelligence policy is not set to Outlawed +200% Habitability Immortal Leaders Cannot generate Leaders without the Synthetic Personality Matrix technology	0	0					Robotic Workers
Domestic Protocols	Can be employed in Servant jobs if under AI Servitude +20% Amenities from Jobs	2	+750					Droids Mechanical
Double Jointed	−10% Pop Housing Usage	1	+750	Bulky	+10% Pop Housing Usage	–1	–150
Durable	–10% Robot Upkeep	1	+750	High Maintenance	+10% Robot Upkeep	–1	–150
Efficient Processors	+5% Resources from Jobs	3	+500
Emotion Emulators	+20% Amenities from Jobs	1	+750	Uncanny	−20% Amenities from Jobs	–1	–150	Machine
Enhanced Memory	−25% Leader Upkeep −1 Leader Maximum Negative Traits	2	+750					Synthetic Personality Matrix
Harvesters	+15% Food from Jobs	2	+750
Learning Algorithms	+10% Leader Experience Gain	1	+750	Repurposed Hardware	–10% Leader Experience Gain	–1	–150	Synthetic Personality Matrix
Logic Engines	+10% Research from Jobs	2	+750					Droids
Loyalty Circuits	+10% Happiness	2	+500					Synthetics Mechanical
Mass-Produced	+15% Pop Assembly Speed	1	+1500	Custom-Made	–15% Pop Assembly Speed	–1	–200
Power Drills	+15% Minerals from Jobs	2	+750
Propaganda Machines	+15% Unity from Jobs	1	+750					Mechanical
Recycled	–20% Pop Assembly Cost	2	+1500	Luxurious	+20% Pop Assembly Cost	–2	–200
Streamlined Protocols	–10% Empire Size from Pops	2	+750	High Bandwidth	+10% Empire Size from Pops	–2	–150
Superconductive	+15% Energy Credits from Jobs	2	+750
Trading Algorithms	+25% Trade Value from Jobs	2	+500					Droids Mechanical

References

Game concepts