A massive abandoned alien space for...

A massive abandoned alien space fortress transformed into a gigantic Minecraft dungeon. The structure should resemble an ancient military citadel drifting through space, built from dark futuristic materials with glowing cyan and purple energy. The dungeon must be extremely detailed and interconnected, featuring dozens of long corridors, multiple floors, laboratories, reactor rooms, control centers, prison blocks, cargo bays, observation decks, security checkpoints, ventilation shafts, hidden passages, maintenance tunnels, secret loot rooms, teleportation chambers, and massive boss arenas. The architecture should feel monumental, mysterious and ancient, with towering halls, giant reinforced doors, broken machinery, exposed pipes, glowing energy conduits, holographic consoles, damaged react