Water Transport InfrastructureConstructed on a water world, rocky-ice planet, frozen planet, or cryovolcanic planet, this structure transports water to another planet in the system. Does not require an artifact. Having it in place allows you to build:
Water Capture InfrastructureConstructed on a desert world, this structure receives water and improves the planet to an arid, jungle, tundra, or terran world (depending on temperature). Does not require an artifact.
Cometary Capture InfrastructureAn alternative approach for desert worlds without a nearby water source, captures water-bearing asteroids to hydrate the planet. Does not require an artifact, but is slower and more expensive than standard water transport/capture infrastructure.
Environmental AgencyRemoves pollution at a hefty credit cost. Does not require an artifact.
Integration Corps / Subjugation Corps Two options for removing a decivilized population. The integration corps is costlier but greatly increases immigration while in effect; the subjugation corps is cheaper and faster but only slightly increases immigration. Neither requires an artifact.
Atmospheric FilterRemoves toxic or dense atmospheres. Requires an "atmospheric mineralizer" to complete.
Atmospheric PumpAdds an atmosphere to a planet, removing the effects of null or thin atmosphere. Requires an "atmospheric sublimator" to complete.
Stellar MirrorRemoves cold or extreme cold. The latter is costlier and takes longer. Requires a "stellar reflector core" to complete.
Stellar ShadeRemoves heat or extreme heat. The latter is costlier and takes longer. Requires a "stellar reflector core" to complete.
Stellar DistributorRemoves poor light. Requires a "stellar reflector core" to complete.
Tectonic EngineRemoves tectonic activity or extreme tectonic activity. The latter is costlier and takes longer. Requires a "tectonic attenuator" to complete.
Cyclonic RegulatorRemoves extreme weather. Requires a "weather manipulation core" to complete.
Genepurge ProjectUnleashes engineered viruses to remove a planet's inimical biosphere. Does not require an artifact to complete.
N-Brane OscillatorAdjusts the local gravitational field. Requires an "n-brane oscillator core" to have any effect.
Climate Sculpting ProjectCan only be built on a terran or water world. Adds "mild climate," further reducing hazard rating. Requires a "terraformer brainprint" to complete.
Lobster Breeding ProgramAdds Volturnian lobster to a water world, but reduces relations with the Sindrian Diktat.