Removed: No Longer Available
Sectors was removed from the game files, and is no longer obtainable.
Sectors were vast sections of space the each represented a different tier of difficulty in Starbound. There were five sectors in Starbound, listed in order of increasing difficulty: Alpha, Beta, Gamma, Delta, and X. The first four sectors consisted of a single difficulty level each, while Sector X represented six difficulty levels.
In the navigation screen, each 'twinkle' in a sector represented one system. Each system consisted of multiple planets.
The sectors system was removed in update Rampaging Koala in favor of a continuous universe with star types of varying difficulties.
The Alpha Sector was the section of space where players would have started their adventure. It consisted of planets with threat level 1. Discovered biomes in this sector included forest, arid, desert, moon, snow, and asteroid field.
The Beta Sector represented the second tier of difficulty, consisting of planets with threat level 2. It was accessible by crafting and using the Starmap Upgrade MK2 at the Metalwork Station. In addition to all previous biomes, the new biomes in this sector were the jungle and savannah.
The Gamma Sector represented the third tier of difficulty, consisting of planets with threat level 3. It was accessible by crafting and using the Starmap Upgrade MK3 at the Robotic Crafting Table. In addition to all previous biomes, the new biome in this sector was the grasslands.
The Delta Sector was the fourth tier of difficulty, consisting of planets with threat level 4. It was accessible by using the Starmap Upgrade MK4 received from the Gamma Sector boss. In addition to all previous biomes, new biomes in this sector included magma, tentacle, tundra, and volcanic. The Delta Sector shared the same universe seeds as the Gamma sector, causing all the solar systems to have the same coordinates. New planets were added, however.
Sector X consisted of planets with threat levels 5 to 10. It was accessible by using the Durasteel Tech Upgrade received from the Delta Sector boss.