Asteroid Belt

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An Asteroid Belt is a Space Surface zone that orbits a star and is filled with irregularly-shaped asteroids that are like islands. Asteroids are not finite like ground surfaces and can go infinitely in any direction, although the island asteroids will not spawn too far north or south. While randomly generated, the Calidus system will always have Asteroid Belt 1 as beryl primary, and Belt 2 as methane ice primary. Similar to all surfaces in Space Exploration, they are subject to random CME and meteors.

Asteroid Belt Traits[edit]

  • Asteroid belts are infinite in every direction, but will not spawn anything above about 300 tiles north or 300 tiles south of the horizontal axis.
  • They have a solar value between 20% and 250%.
  • They do not have any biters.
  • There is no day/night cycle, and the solar strength is always same.
  • The robot interference modifier is relative to the distance from the star, from 0.45 to 5.3.
  • Every star will have at least one asteroid belt, but no more than two.

Resource Characteristics[edit]

  • Asteroid belts will always contain the same seven resources:
    • iron ore
    • copper ore
    • stone
    • uranium ore
    • methane ice
    • water ice
    • beryl ore
  • Any of the resources can be the primary resource, but there are no core seams.
  • An asteroid belt will never contain oil in liquid form or water in liquid form. A growth facility can be used to create crude oil from methane gas and biosludge. Several different buildings can convert water ice to water.
  • While they can only have seven types of resources, resource values can go into upwards of 100 to 500 million to even a billion, substantially richer than any other surface. This includes uranium ore, potentially making a single patch in a asteroid belt richer than an entire ground surface for uranium.


  • For purpose of launch cost of spaceship, cargo rocket, and delivery cannon they are considered to have a radius of 50.
  • For purpose of calculating the strength of a CME they are considered to have a radius of 5000.
  • A spaceship traversing an asteroid belt will be subject to greater amount of asteroid density (defense purposes).
  • Asteroid belt data can only be acquired by launching a proper probe on this surface.