Ferrous Planets, introduced in the Forbidden Worlds DLC, offer the highest possible number of metal asteroids and the highest maximum health of any planets.
Planetary upgrades[]
| PlanetType | MaxPop. | MaxHealth | Max Slots | Extractors | Max Research Increase (+Pop.) | ||||
|---|---|---|---|---|---|---|---|---|---|
| Log. | Tac. | M | C | Advent | TEC | Vasari | |||
| Ferrous World | 175 | 9000 | 24 | 39 | 1-8 | 0 | N/A | N/A | 60% (+105) |