Overview
The cosmos of Arcanum Mechanica is a realm of immense diversity, where celestial bodies are shaped not just by gravity, but by the ever-present currents of mana. Some systems follow familiar astronomical principles, their stars fueled by nuclear fusion, while others are bound by more esoteric forces—arcane stars that burn with raw, condensed mana, shaping the very reality around them.
Solar systems in this universe are not merely physical constructs; they are dynamic nexuses of power and instability. Planets and moons orbit along shifting ley lines of energy, their environments influenced as much by the flow of mana as by the pull of gravity. Some worlds thrive under the light of steady, conventional suns, while others are suspended in the influence of arcane stars, where time, space, and magic intertwine in unpredictable ways.
While most systems are structured around either fusion-powered stars or mana-infused stars, it is possible that other, rarer stellar phenomena exist—stars composed of unknown substances, remnants of cosmic anomalies, or forces beyond mortal comprehension. Some may be darkened husks of failed stars, while others could be sustained by principles yet to be understood.
Unless otherwise noted, solar systems in Arcanum Mechanica are named after the star they contain, reflecting their central role in defining the worlds that orbit them. The nature of these stars—whether ordinary or extraordinary—determines the fate of all who dwell within their domain.
Known Systems¶
Eldralume¶
The star at the heart of this system, Eldralume, is composed of condensed mana, radiating both light and arcane energy, much like a Sol-class star. Unlike fusion-driven stars, Eldralume generates mana winds, unstable surges of raw magical force that ripple outward, affecting planetary environments and magical potency. It also releases mana rivers, vast currents of energy that weave through space like celestial ley lines, shaping the orbits and properties of the worlds within its grasp. These forces make Eldralume’s system a place of immense power and instability, where reality itself bends to the ebb and flow of arcane tides.