The Core System is a binary star system introduced in Battlezone II. The four worlds consist of: Mire, Bane and Rend, each of which host evidence of previous sentient life and Cthonian colonisation; and Core, the homeworld of the Scion Collective.
- Core, the biometalloid homeworld of the Scion Collective trapped in a lagrange point between the two stars
- An unnamed gas giant also situated in one of the system's lagrange points
- Rend, a volcanic moon orbiting the gas giant
- Mire, a garden world in the middle of the system
- Bane, an icy but habitable world at the outer edge of the system