Dessignation: originally Gaia; Helios d
Star System: Helios
Moon: Hecate (Mercury-sized)
Capital: Shandug
Tian, originally known as Gaia and designated Helios d, is the wealthiest and most influential core world in the Compact. A near-twin of Earth in size, gravity, and atmospheric composition, Tian was settled during the early days of humanity’s expansion into the Helios system. The planet was founded by China with critical support from North America, the British Isle Federation, and Brazil, resulting in a multicultural power center with strong East Asian political and economic roots.
Tian’s capital, Shandug, is a symbol of its planetary wealth and Compact prestige. The planet is home to both the Tian Regional Command of the Compact Navy and Cybercommand’s “Bunker”, a shadowy, high-security facility located deep underground. This strategic importance places Tian at the heart of both military operations and interstellar intelligence efforts.
Tian also holds personal relevance within the Compact Universe narrative—Suicide, one of its most pivotal figures, was born there, and JT Austin once dreamed of running away to Tian before fate diverted him to The Children of Amargosa. The planet’s moon, Hecate, is Mercury-sized and plays a minor but notable role in orbital infrastructure and defense.