The subject of this article is from the NEXT update.
The information from this article is up-to-date as of 28 October, 2018.
Eccanit Surface1.png
An irradiated moon.

Irradiated is one of the Biome varieties.


Worlds with an Irradiated biome have a rocky surface with spirals, vents of steaming radioactive gasses and highly mutated, warped plants. Viewed from space, these worlds have lots of spiralling circles. The resources Uranium, Gamma Root and Radon can be found here.

Despite the radioactive nature of these planets, fauna are surprisingly common on these planets.

Name generation

Gayla Surface.png
An irradiated world.
The biome type is indicated in the information panel when the player exits their starship. This is procedurally generated by adding one of the following prefixes to the Planet or Moon text.

The sequence is taken from the game file.

  1. Irradiated
  2. Radioactive
  3. Contaminated
  4. Nuclear
  5. Isotopic
  6. Decaying Nuclear
  7. Gamma-Intensive
  8. High Radio Source
  9. Supercritical
  10. High Energy


  • Hazard protection is always on due to high amounts of radiation. Radiation Deflector upgrades are recommended, especially on extreme worlds.
  • Radioactive storms can occur, draining hazard protection approximately three times higher more quickly than normal.
  • Extremely irradiated worlds drains hazard protection at the same rate during a storm in a normal irradiated world.
  • Storms in extremely irradiated worlds drain hazard protection approximately three times more quickly.


Cesonja Major Surface.png
Extremely irradiated worlds have powerful storms, resulting in planet-wide devastation with up to 32 Rad. Example: Eurus 4 in Eurus and Li Shipek 2 in Li Shipek
Clear (No storms) Normal Extreme
Contaminated Puddles Energetic Storms Contaminated Squalls
Gamma Dust Irradiated Downpours Enormous Nuclear Storms
Irradiated Winds Irradiated Storms Extreme Atmospheric Decay
Nuclidic Atmosphere Occasional Radiation Outbursts Extreme Radioactivity
Radioactive Damp Particulate Winds Extreme Thermonuclear Fog
Radioactive Humidity Radioactive Dust Storms Frequent Particle Eruptions
Unstable Atmosphere Reactive Rain Gamma Cyclones
Volatile Winds Unstable Fog Irradiated Thunderstorms
Volatile Windstorms Planet-Wide Radiation Storms
Roaring Nuclear Wind

Records and Landmarks

Finding the most dangerous planets is both part of an explorer's spirit and a natural tourist attraction. Further, some of them are famous landmarks. Here are some examples:

Record Radiation:

  • Li Shipek / Li Shipek 2, 32 Rad (10.9 base radiation)
  • TBD
  • TBD



Several irradiated worlds have been observed by the Forgotten Colonies to enter a chromatic hue and mega-exotic pre-stage of the giant underwater plant variety, implying that their corruption and ultimate loss of coherence in the wake of the Atlas' demise is one and the same and may shed a light on the origin of those chromatics.

Additional Information

  • The name generation and the sequence are extracted from the 1.77 version of NMS_UPDATE3_ENGLISH.MBIN game file.
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