Callisto

Callisto (Moon of Jupiter)
Farthest Moon of Jupiter. A barren, rocky world with no ores, besides Fallen Meteors and Oxygen Ice.

Reaching Callisto and Surviving
Like all other Jupiter Moons, Callisto requires a Tier 5 Rocket to reach from the Overworld. It is required to have Tier 2 Thermal Gear and Oxygen Gear. Radiation protection is not required here.