There are nine types of regular habitable planets, divided equally into three climate categories: Dry, Frozen and Wet. Habitable planets are the only natural celestial bodies that can be colonized and terraformed, without the Terraforming Candidate planet modifier. every pop with the communal trait (and no other modifiers) provides +0.1 planet capacity in total.

Therfore, only pops with pop housing usage modifiers affect planet capacity, e.g. Pops: Every pop provides +1 planet capacity, but also uses housing.Building districts can alter planet capacity, depending on whether the housing bonus is higher or lower than the capacity bonus of the undeveloped district. Clearing tile blockers increases planet capacity. Districts: Free district slots will grant planet capacity depending on the world type (see table).Housing: Each unit of unused housing provides +1 planet capacity.There are three sources of planet capacity: Homeworlds have a size between 18 and 21, unless otherwise determined by the empire's origin.Įach colony has a Planet capacity, which determines the logistic pop growth bonus or malus from pops.Planets can have various sizes, but habitable ones will always be within the following margins:

The planet size determines the visual size of a planet and the maximum number of districts the planet can support if it's habitable.

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