Callisto is the northernmost city and citadel of Jupiter, located in Procella. The city is the most populous region in all of Luxtia. It is also the largest in land area; it covers all of Jupiter's half of the Procella region, its urban area reaching Saturn's border.

The city has a major Osirine diaspora.

Geography

Callisto's territory is large and flat.

Citadel

Callisto's citadel focuses on service industries, such as banking, education, and transportation.