New Cascadia's Silence

In 2812, a disease outbreak ravages the colony and, in 2827, surviving colonists encounter some kind of gravitational anomaly, causing them to detonate through unknown means. By the late 29th century, the planet was dying.

The colony of New Cascadia, once home to 30,000 souls, fell silent. What exactly happened to the colonists remains the central mystery of the new Marathon. Strange signals still emanate from the planet. Mysterious artifacts litter its surface. Long-dormant AIs stir in the wreckage. And the UESC Marathon itself, the converted moon of Deimos, hangs in low orbit, its frozen vaults sealed shut.