Star Skeleton Scrap Armor

In AD 3147, human interstellar civilization encountered the "Entropy Silence Sky" cosmic-level disaster: an unknown high-dimensional civilization lowered the shackles of rules, habitable planets and stars were extinguished one by one, the gravity of galaxies was disordered, conventional interstellar jumps failed, and the universe gradually entered heat death. The remaining forces of mankind retreated to the Broken Star airspace on the edge of the galaxy, surviving on the remains of abandoned mechas from ancient civilizations. There are four major forces in the airspace: the centralized and authoritarian [Federal Orthodoxy], the capital monopoly [Starship Plutocrats], the barbaric and autonomous [Vagrant Star Sea], and the hidden and dormant [Remnant Dark Court]. The four parties are plotting and war is endless. There is no absolute justice in the apocalypse, only survival and game.