Riven Shroud is a massive Dyson sphere technostructure built around a low-grade star that serves as its primary power source. The sphere consists of continent-wide modules of strange architecture interspersed with vast solar sails that harness and redirect the star's enormous energy output. However, the structure's damaged nature is immediately apparent—an enormous rent mars the surface, leaving thousands of miles of the sphere open and vulnerable to the surrounding vacuum of space. The sphere's origins remain a mystery, with scholars unable to identify who built it or for what purpose. The architecture matches no known species' style and appears designed for creatures that had no need for doors, windows, or other physical portals, suggesting the builders could teleport through solid objects. Leading theories propose it once housed a colony, served as a haven for creatures escaping a dying world, or contained offworld research facilities. Three rare humanoid species—aatevaks, qotrauas, and xixinnts—claim to be descendants of the Parents who built Riven Shroud, though their lack of teleportation abilities casts doubt on these claims. All three species have physiologies partially adapted to vacuum, similar to sarcesians, allowing them to survive brief exposure to space. The structure has no central government, instead hosting insular settlements focused on survival. Life-support systems function with varying reliability across different zones: near the rent, systems are entirely obliterated, requiring environmental suits; in middle zones, life support functions erratically with unpredictable malfunctions; in areas farthest from the rent, systems work reliably, though these regions have an eerie, semi-abandoned atmosphere. Riven Shroud attracts a diverse population including outlaws avoiding law enforcement, scavengers mining precious metals near the sun, scientists studying the sphere's power systems, and researchers fascinated by the ancient technology. The out-of-the-way location and dangerous conditions make it an ideal haven for those seeking isolation or fortune.