Each race has a specific initial Planet Class for its homeworld from 10 to 15, usually 10 and for the other habitable planet in its home star system from 3 to 8, usually 4, except for the Thalan Empire which doesn't have one.Įarth is a Class 10 planet by default, while Mars is a Class 4. Planet Class generally ranges from 0 to 26, though higher values are possible.Ĭlass 0 planets are uninhabitablewhile planets of Class 1 or higher are habitable and can eventually be colonized. High quality planets will appear as virtually solid white circles. The more hollow the representation, the lower the class. When the main map is sufficiently zoomed out and 3D models are replaced by symbols, Planet Class is indicated by a hollow white circle. It also determines the planet's maximum population in DL and DA. The majority of minor races you encounter will have a home planet of at least Class Planet Class also referred to as Planet Quality, or PQ represents the usable tiles on that planet for planetary improvements.