Asteroid Field

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Asteroid Field Nav.png
Threat: Low (Tier 1) Weather
Star types: All Clear.png
EPP Required: Status Airless.png Breathing EPP
Mini Biomes: None
Secondary Biomes: None
Asteroid Field Ship.png
An asteroid field biome.
Asteroid Field is a primary biome type characterized by floating rocks in airless space, similar in appearance to the asteroids found above the atmosphere of planets. Because asteroid fields have no atmosphere there is no color in the sky, simply a view of nearby planets and stars. Asteroid fields can be found orbiting all star types.

Asteroid fields have a 'low' threat level, geared toward Tier 1 progression, although you cannot deploy to them without a mech, which start at Tier 3. With no gravity, they behave like a space encounter rather than a terrestrial planet. Players will not survive long outside of their mechs, unless they are equipped with an EPP to provide air. Furthermore, without gravity, extra-vehicular movement will be severely limited without the assistance of a technology such as a rocket spear.

All asteroid fields have a world size of 16000 blocks wide by 7000 blocks tall. The top and bottom 2000 blocks are completely empty, whereas the middle band of 3000 blocks contains the asteroid field. Asteroid fields are a quick way to find large amounts of copper, silver and gold, but no other ores are found in them. Skimbus is the only monster type found in asteroid fields.

Navigation Console

Asteroid Fields have no specific navigation console description text and are considered to be directly orbiting the star, so you can travel to any X-axis point in the field via the navigation console. For example, deploying into an asteroid field while your ship is at the 3 o'clock position of the field in the navigation console places your mech at the 0 X-axis coordinate in the field, 12 o'clock deploys to the 4000 X-axis coordinate, 9 o'clock to 8000, 6 o'clock to 12000, and so forth. Regardless of X-axis position, mechs always deploy to approximately the 3500 Y-axis coordinate.


Asteroid fields are made up of a variety of floating islands of rock. There is an extreme abundance of ore found in asteroid fields, with very large veins of copper, silver ore, and gold being available to mine inside some asteroids. This ore has a wide variety of uses but none of them involve progressing your character to a new tier. Because most of the rocks are relatively small, it's easy to see ore inside for mining. Some veins of copper and silver ore will also contain more valuable ore (silver or gold respectively) as a bonus. There are considerably more copper veins than silver, and considerably more silver than gold, although mining thousands of even silver ore will be easy to achieve.

There's no plant life or water of any kind found naturally in asteroid fields.

Primary material Sub materials Geological materials

Music Tracks

Like other space encounters, the Starbound engine does not provide a concept of time of day in asteroid fields, so they use a single set of music tracks for both "day-time" and "night-time."

  • Jupiter
  • Arctic Constellation 1
  • Arctic Constellation 2
  • Mercury
  • Mira
  • Procyon
  • Tranquility Base
  • Psyche
  • Accretion Disc
  • Cygnus X1
  • Eridanus Supervoid
  • Horsehead Nebula
  • Large Magellanic Cloud
  • M54
  • Nomads
  • On the Beach at Night

Sub Biomes

Asteroid fields do not have any sub biomes as they are space encounters. Asteroid fields can never form the surface of a planet, but a low-gravity variation of them will be present if you travel far enough above the surface to enter the Space layer. This biome has a similar appearance, ore, and monster profile.

Mini Biomes

There are no mini biomes which can be found in asteroid fields.


As a space encounter, asteroid fields do not have any weather.

Wild Crops

No crops can be found growing in asteroid fields.


The only monsters found in the asteroid fields are Skimbuses. No other types of monsters, critters or bugs can be found in them.

Unique Monsters
Skimbus.png Skimbus

Unique Drops

There are no drops unique to asteroid fields.


There are no villages or dungeons found in asteroid fields as their conditions are too harsh to support any type of settlement. However, a player-made colony can be made here, but such a colony may be difficult to find after the player's ship has been moved, given the size and uniformity of asteroid fields. Furthermore, asteroid fields contain no gravity, so without mods, any colonies created by a player will have no gravity, which will severely impact the behavior of tenant NPCs.


There are no villages which appear in asteroid fields.


There are no dungeons which appear in asteroid fields.


  • It is far more efficient to mine ores using Mining Drones rather than by hand due to their extremely quick mining speed, but you'll need a spear capable of "Rocket Spear" or the Drill Spear to be maneuverable in tight spaces.