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Class X planets are the result of a failed Class U planet in a star system's Hot Zone. Instead of becoming a gas giant or red dwarf star, a Class X planet was stripped of its hydrogen/helium atmosphere. The result is a small, barren world similar to a Class B planet, but with no atmosphere and an extremely dense, metal-rich core.
ClassXplanet

Class X Planet type


Game Notes:

  • Extreme attrition damage to units outside Pressure Domed Cities.
  • No Water for Naval Units
  • No Water for Fishery or Waterport
  • No Atmosphere for Air Units or Airport
  • All facilities require Pressure Dome (w/ Heat Shield) Upgrade or suffer damage.
  • Mine produce X3 Metal.