Castellus is a system of 4 terrestrial planets and a gas giant. Carborix and Fiax are the local mining worlds whose resources fuel the industries of the turian colony Digeris. Iritum has the attendant starship-relevant facilities and habitats.
The Reapers turned most of the orbital facilities on Castellus to slag, but on Digeris they face a stalemate against the stubborn turian fleet.
Carborix[]
Carborix is the first planet orbiting the star Castellus.
- Main article: Carborix
Nios[]
Nios is the second planet orbiting the star Castellus.
- Main article: Nios
Digeris[]
Digeris is the third planet orbiting the star Castellus.
- Main article: Digeris
Fiax[]
Fiax is the fourth planet orbiting the star Castellus.
- Main article: Fiax
Iritum[]
Iritum is the fifth planet orbiting the star Castellus.
- Main article: Iritum