Ore

An Ore world differentiated into a single material and retained no other. The material is usually nickel iron, with rarer materials on the bodies that are fought over. It is the stripped core of a larger body or a fragment that never finished forming, and the seam is at the surface, so no shaft is needed. No life exists on one, and anyone on the surface is there on a contract, usually one of Black Star Energy & Extractives' own.

Planetary environment

Crossing it

Navigate: DC 10
Forage: DC 20
Notice: DC 8

Every landmark is a mine working. No forage is available, and all supplies are shipped in.

Exposure

Vacuum

No pressure and no air to breathe, with survival measured in rounds.
- Countdown
  
  Without a seal, a creature holds out for a number of rounds equal to its Constitution modifier, minimum 1. At the end of that time its hit points drop to -1, unless they are already lower, and it is dying. It cannot be stabilized or regain hit points until it can breathe.
- Decompressed
  
  Exposure inflicts the Decompressed condition, which a return to pressure does not by itself remove.
- Holding your breath
  
  Holding a breath in vacuum ruptures the lungs. A creature that does so takes 2d6 damage on the first round and gains no benefit from the attempt.
- Sound
  
  Sound does not travel. Verbal spell components, shouted orders and Perception by hearing all fail across open vacuum. Suit comms and touch are the only channels.
- Unfiltered light
  
  Without air to filter it, the star's output arrives unreduced. An hour of unshielded exposure in direct sunlight counts as a failed Contaminated Atmosphere save against radiological dose.
Magnetic Disturbance

A world's or star's magnetic field in upheaval, so that instruments give false readings and comms fail.
- Instruments
  
  Navigation and comms fail beyond Long range. Any check made with electronic assistance has disadvantage.
- Powered gear
  
  Powered weapons and cybernetics stutter: a natural 1 on an attack or a check using them means the item is unusable until the end of the next turn.
- Induced current
  
  Long conductors take on induced current. Unshielded power and data runs fail, and a creature in contact with one takes 2d6 lightning damage.
- Channeling
  
  On a world with an active Rift tether, a natural 1 on a spell attack roll, or a target's natural 20 on a saving throw against a spell, rolls on the Surge Table.

In play

Magnetic field

The metallic body is its own magnet. Magnetic Storm applies across the surface, and a magnetic compass points at the nearest mass instead of a pole.
Surface seam

The ore is the ground, so a mining check made on an Ore world succeeds on any roll except a 1. The economy of an Ore world is haulage.
No food

There is no biosphere of any kind. A party relies on its own supplies from the moment it lands, and every installation posts its days of stores on the door.

Regions on it

Highland Mountain country below the snow line: long sightlines, slow going and fast-changing weather.
Near Space The last of the atmosphere, thin enough to count as vacuum for every purpose except drag.
Subterranean Everything under the surface, with no light, no weather, and a route set by what the rock allows.