Bretheda

Bretheda is the largest gas giant planet in the Pact Worlds system.[1][2][3] Its nickname is The Cradle, which comes from its dozens of moons, some of which have barely been explored.[3]

Settlements
As a gas giant, Bretheda lacks a solid surface. Floating arcologies host lifeforms not native or adapted to such environments, such as terrestrial races.[2]

Inhabitants
Barathus are floating, gelatinous creatures capable of rewriting their own DNA, making them an extremely flexible and adaptable race. They maintain Bretheda's sister planet Liavara as a reserve of native lifeforms.[2]

Barathus are also capable of joining consciousnesses, which they use to form super-intelligent entities. Some such entities collectively operate corporations that facilitate interplanetary trade in biotechnology, such as the Sopeth Corporation, a single sentient hive-mind comprised of thousands of barathus.[2][3]

Satellites
Bretheda has dozens of moons, and some are nearly the size of other planets in the system. Noteworthy moons include: Bretheda is also orbited by a collection of "death moons" with conditions hazardous to most other species.
 * The industrialized water world of Kalo-Mahoi.[3]
 * Marata, where anthropological debate has erupted over the native maraquoi tribes' development from paleolithic technology to space travel in only a few generations.[3]
 * Crystalline Dykon, which is home to silicon-based life, including urogs.[3]
 * Thyst is so radioactive that unprotected flesh can melt from bone.[3]
 * Varos is a volcanic, tidally heated planetoid where imprisoned and indentured workers mine for gemstones unique to the moon's mantle.[3][4]