
All of the starting planets are Medium-sized. The starting world for most Factions is also a unique planet with adjustments to balance starting out. Unique Planets are rare, but a few can usually be found spread throughout the galaxy. Instead, they produce extremely high, , and/or per, depending on their temperature. They do not appear as Tiny or Small sizes, their default maximum is always 1, and they never produce any food. Gas planets are a special extreme type of planet. They have middling population slots and minor penalties. Neutral planets have no particular FIDSI specialty.They have fewer population slots and significant penalties.

In general, their FIDSI bonuses are more extreme, being either very high or very low.

Exact FIDSI values will depend on how much terraforming is done. *The Crescent class is exclusive to the Umbral Choir's home system, or any custom faction with their "In the Shadows" affinity. A planet's class can be changed via Terraforming. In conjunction with the Size, it also determines the planet's maximum. The planet's class determines how much FIDSI and each generates on the planet. Planets have various traits that determine how useful they will be to your empire.
