Stellaris 4.5.2 planet modifiers
Stellaris 4.5.2 has 70 planet modifiers. 41 can appear on worlds when the galaxy is made, each on the planet classes its page lists; the other 29 come only from events and effects.
Modifiers events add to planets and empires (Free Market and the like) are under Modifiers.
Rolled when the galaxy is made
Abundant Geothermal Activity10 planet classes+1 Engineering Research Produced per 100 Technicians, +4 Max Generator Districts
Asteroid Belt (base)16 planet classes+1 Engineering Research Produced per 100 Miners, +4 Max Mining Districts- Asteroid Belt (volcanic)1 planet class+1 Engineering Research Produced per 100 Miners, +4 Max Mining Districts
Asteroid Impacts (base)10 planet classes-5% Habitability, +5% Minerals from Jobs, +2 Max Mining Districts
Asteroid Impacts (volcanic)1 planet class-5% Habitability, +5% Minerals from Jobs, +2 Max Mining Districts
Atmospheric Aphrodisiac10 planet classes+5% Habitability, +10% Pop Growth Speed, -20% Governing Ethics Attraction
Atmospheric Hallucinogen11 planet classes+5% Biological Pop Happiness, +5% Lithoid Pop Happiness, +10% Physics Research from Jobs
Bleak9 planet classes-10% Habitability, -1 Food Produced per 100 Farmers, -4 Max Agriculture Districts
Carbon World2 planet classes
Chthonian Planet1 planet class
Crystal Lake1 planet class+20% Rare Crystals from Jobs, +0.02 Rare Crystals Produced per 100 Miners
Docile Fauna1 planet class+10% Habitability, +5% Happiness, +25% Society Research from Jobs
Exceptional Quality Minerals (base)12 planet classes+25% Minerals from Jobs, +8 Max Mining Districts- Exceptional Quality Minerals (volcanic)1 planet class+25% Minerals from Jobs, +8 Max Mining Districts
Extensive Moon System1 planet class
Extremophile Lifeforms1 planet class+25% Society Research from Jobs
Hazardous Weather10 planet classes-10% Habitability, -5% Happiness, +20% Energy Credits from Jobs
High Gravity12 planet classes+10% Infrastructure Cost, -5% Habitability, +2 Max Districts
High Quality Minerals (base)12 planet classes+15% Minerals from Jobs, +4 Max Mining Districts- High Quality Minerals (volcanic)1 planet class+15% Minerals from Jobs, +4 Max Mining Districts
Hollow Planet1 planet class+2 Max Mining Districts, +2 Max Thermotechnic Forums
Hostile Fauna9 planet classes-10% Habitability, -5% Happiness, +20% Society Research from Jobs
Hyper Ecosystem1 planet class+2 Food Produced per 100 Farmers, -200% Pop Food Upkeep, -50% Infrastructure Build Speed
Lavafalls1 planet class+0.2 Alloys Produced per 100 Miners, +1 Max Mining Districts
Low Gravity12 planet classes-10% Infrastructure Cost, -5% Habitability
Lush4 planet classes+10% Habitability, +20% Food from Jobs, +4 Max Agriculture Districts
Natural Beauty11 planet classes+5% Happiness, +25% Automatic Resettlement Destination Chance
Obsidian Lakes (base)Under conditions+2 Max Mining Districts, +0.2 Rare Crystals Produced per 100 Miners, -10% Housing- Obsidian Lakes (volcanic)1 planet class+2 Max Mining Districts, +0.2 Rare Crystals Produced per 100 Miners, -10% Housing
Poor Quality Minerals (base)15 planet classes-25% Minerals from Jobs, -3 Max Mining Districts- Poor Quality Minerals (volcanic)1 planet class-25% Minerals from Jobs, -3 Max Mining Districts
Rich Microflora4 planet classes+4 Max Agriculture Districts, +1 Society Research Produced per 100 Farmers
Stratospheric Vents10 planet classes+5% Society Research from Jobs, +5% Engineering Research from Jobs
Strong Magnetic Field11 planet classes+1 Physics Research Produced per 100 Technicians, +4 Max Generator Districts- Subterranean Wildlife (base)10 planet classes+2 Max Districts, +20% Infrastructure Upkeep, +1 Society Research Produced per 100 Miners
- Subterranean Wildlife (volcanic)1 planet class+2 Max Districts, +20% Infrastructure Upkeep, +1 Society Research Produced per 100 Miners
Tidal Locked10 planet classes-30% Max Districts, -3 Max Agriculture Districts
Titanic Life11 planet classes+25% Society Research from Jobs
Unstable Tectonics11 planet classes-10% Habitability, -5% Happiness, +20% Engineering Research from Jobs
Weak Magnetic Field11 planet classes-5% Habitability, -5% Pop Growth Speed, +10% Physics Research from Jobs
Wild Storms11 planet classes-5% Habitability, -5% Happiness, +20% Physics Research from Jobs
From events and effects
Ancient AutomationEvents only
Ancient FactoryEvents only- Ancient ForgeworldEvents only
Ancient Orbital WeaponEvents only
Arc FurnaceEvents only+100% Resources Produced from Mining Stations- Arc Furnace: Borehole PumpsEvents only+50% Resources Produced from Mining Stations
- Arc Furnace: Equatorial BandEvents only+25% Resources Produced from Mining Stations
- Arc Furnace: Mohole ExtractorsEvents only+75% Resources Produced from Mining Stations
Battlefield RecoveriesEvents only-50% Pop Amenities Usage- Calamitous QuartileEvents only-13% Stability, -25% Unity from Jobs
- Debris FieldEvents only-30% Habitability, +15% Infrastructure Cost, +50% Infrastructure Upkeep
Dyson SwarmEvents only+3,000% Resources Produced from Mining Stations, +3,000% Resources Produced from Research Stations
Dyson Swarm: ArrayEvents only+500% Resources Produced from Mining Stations, +500% Resources Produced from Research Stations- Dyson Swarm: ConstellationEvents only+1,500% Resources Produced from Mining Stations, +1,500% Resources Produced from Research Stations
- Favorable TrineEvents only+13% Stability, +13% Unity from Jobs
Geothermic MetallurgyEvents only+1 Alloys Produced per 100 Miners- Hyper-transmissible Virus (base)Events only-13% Resources from Jobs, -13% Pop Growth Speed, -13% Happiness
- Hyper-transmissible Virus (gestalt)Events only-13% Resources from Jobs, -13% Pop Growth Speed, -0.07 Stability
MobileEvents only+75% Unity from Jobs, +75% Physics Research from Jobs, +75% Society Research from Jobs
Radiant LuminaryEvents only+33% Energy Credits from Jobs
Resource DepletionEvents only-75% Resources Produced from Mining Stations- Robot WorkersEvents only
Shroud Portal (base)Events only-10% Happiness, -10% Pop Growth Speed, -10% Worker Pop Resource Output- Shroud Portal (gestalt)Events only-10% Unity from Jobs, -10% Pop Growth Speed, -10% Worker Pop Resource Output
ShroudfallEvents only-15% Society Research from Jobs, +15% Upkeep for Researchers
Spire of CommoditiesEvents only
StationaryEvents only+75% Energy Credits from Jobs, +75% Minerals from Jobs, +75% Food from Jobs
Unaligned Shield ProjectorsEvents only-50% Shield Hit Points, -50% Daily Shield Regen- Waning LuminaryEvents only-33% Energy Credits from Jobs
Planet modifiers: questions
How many planet modifiers are in Stellaris 4.5.2?
70: 41 can appear when the galaxy is made, 29 come from events and effects.
From the game files · Stellaris Cygnus v4.5.2 (9776).