You play as Kaelen , a "Dredger" born into the lowest caste of the Cluster. Your father was a legendary miner who vanished ten years ago in the infamous Sector 9 collapse . When a mysterious distress signal from your father’s old frequency pings from the deepest, uncharted level of the mines, you steal a rusted Exosuit and begin a rogue descent.

At the center of the planet, Kaelen finds the truth: Aetherium is the soul of Volantis. To harvest enough to save the human race, you must effectively kill the planet, causing it to shatter and destroying the unique ecosystem within.

As you dig, you realize Volantis isn't just a rock; it’s a biological entity . The walls of the mine bleed bioluminescent sap, and the "hostile fauna" are actually the planet's immune system. You discover ancient ruins that predate humanity, suggesting that Earth's survivors didn't find Volantis by accident—they were summoned .