Stellaris Planet Class IDs

Rocky world covered with artificial structures. The thin atmosphere consists mostly of industrial pollutants. There are strong energy emissions coming from across the entire surface, but no organic life signs.

Mountainous world with a nitrogen-oxygen atmosphere. Snow covers the mountaintops and frozen-over lakes dot the valleys. While the planet experiences the minimal seasonal variations, the still-liquid water beneath the frozen surface of the lakes is enough to sustain some hardy vegetation.

Frigid, rocky world with a nitrogen-oxygen atmosphere. The poles are big, and significant water deposits can be found permanently frozen as glacial ice. However, the planet experiences seasonal variations and the equatorial band is covered by vegetation.

Dry, rocky world with a nitrogen-oxygen atmosphere. The dust-covered terrain consists largely of mesas and canyons. Forests can be found in the more temperate polar regions, but vegetation is otherwise scarce.

Rocky world with a nitrogen-oxygen atmosphere. Active and stable hydrosphere. Great landmasses are separated by oceans, with large climate variations depending on latitude and precipitation.

The cracked shards of an enormous planet-sized egg.

Dry, rocky world with a nitrogen-oxygen atmosphere. Precipitation and major bodies of surface water are relatively rare. Significant temperature variations between day and night cycles. Vegetation is scarce, but even moderate precipitation can make the desert bloom.

Ecumenopolises have special districts. All normal planetary features are removed. The only pre-existing Ecumenopolis is the homeworld of the Keepers of Knowledge Fallen Empire. The city lights of an Ecumenopolis are determined by the ship appearance of the terraforming empire.

Gaia Worlds tend to have positive modifiers and no negative ones. Most DLCs add at least one system with a Gaia world, but a few can be found in all versions.

All normal planetary features are removed. Resource districts are not limited by features. Planetary Prospecting decision disabled.

The surface of this world is covered by some kind of biological contaminant.

All normal planetary features are removed. Resource districts are not limited by features. Planetary Prospecting decision disabled.

A chaotic and inhospitable world, disfigured according to some mad design.

Rocky world with a nitrogen-oxygen atmosphere and a significant hydrosphere. Oceans cover more than 90% of the surface, with scattered islands making up the remaining percentage.

An artificial deep-space arcology offering planet-like, if decidedly urban, living conditions. Hydroponics and advanced filtering technologies make it near-self-sustaining, and station-borne facilities can mine the station's host planet for raw materials.

Relic Worlds can be found in the First League Precursors' home system or in various systems added in the Ancient Relics DLC. Relic Worlds contain unique planetary features that grant bonuses toresearch output. However, most of the surface is covered by blockers that are expensive to remove.

An immense band encircling the system's sun. Built to allow for numerous artificial habitation zones along its inner span, freed from the restrictions and mundanity of planet-bound, spherical existence.

An immense band encircling the system's sun. Built to allow for numerous artificial habitation zones along its inner span, freed from the restrictions and mundanity of planet-bound, spherical existence.

An immense band encircling the system's sun. Built to allow for numerous artificial habitation zones along its inner span, freed from the restrictions and mundanity of planet-bound, spherical existence.

An immense band encircling the system's sun. Built to allow for numerous artificial habitation zones along its inner span, freed from the restrictions and mundanity of planet-bound, spherical existence.

An immense band encircling the system's sun. Built to allow for numerous artificial habitation zones along its inner span, freed from the restrictions and mundanity of planet-bound, spherical existence.

An immense band encircling the system's sun. Built to allow for numerous artificial habitation zones along its inner span, freed from the restrictions and mundanity of planet-bound, spherical existence.

Rocky world dominated by dry, arid plains covered by a nitrogen-oxygen atmosphere. The small hydrosphere allows for brief wet seasons, but aside from a few ubiquitous grasses vegetation is largely concentrated around shallow oases.

The charred, broken remnants of what was once a planet. A massive energy surge has detonated this world's core, leaving only slabs of rock.

An immense band encircling the system's sun. This section of the megastructure has sustained damage - especially to some of its more advanced districts - but it does not appear irreparable.

This entire world is encased in some kind of impenetrable energy barrier. It blocks all scans of the surface.

This entire world is encased in some kind of impenetrable energy barrier. It blocks all scans of the surface.

An artificial deep-space arcology offering planet-like, if decidedly urban, living conditions. Hydroponics and advanced filtering technologies make it near-self-sustaining, and station-borne facilities can mine the station's host planet for raw materials.

Our sensors are unable to penetrate the thick fog surrounding the planet. Ships that enter it do not return.

Pre-FTL civilizations in the Atomic or Early Space Age have a small chance of starting a nuclear war and turning the planet into a Tomb World. Each Tomb World has a high chance of triggering one of 8 unique events 2 or 3 years after the planet is colonized.

Humid, rocky world with a thick nitrogen-oxygen atmosphere. Seasons with significant precipitation are interchanged with drier periods. Most landmasses are covered in dense vegetation.

Cold and rocky world with a nitrogen-oxygen atmosphere. Permafrost covers most of the surface except for the more temperate equatorial regions. A stable biosphere exists but vegetation is mostly limited to mosses and lichens.