Genarius was a gas giant in the Cularin system. Much like Bespin, it had floating cities, including a manufacturing city built by SoroSuub Corporation 32 BBY. The floating cities of Genarius were viewed as relatively lawless by the standards of the rest of the Cularin system. Genarius gave off its own glow, along with heat and energy. Its core was a producer of low-energy fusion, with temperatures as hot as protostars though not great enough to turn the planet into a star. Storms of extremely forceful winds and deadly radiation would sweep up from below and could devastate unprotected cities.