futuristic space station 3d model

A colossal floating sci-fi industrial megastructure, designed as a futuristic space-city fortress. Massive scale, several kilometers wide, composed of stacked horizontal platforms and angular vertical superstructures. Brutalist sci-fi architecture with heavy industrial aesthetics. The structure features layered armor plates, reinforced steel hulls, exposed mechanical systems, vents, pipes, antenna arrays, docking bays, and structural ribs. Geometry is complex and dense, with visible construction logic. Surfaces are metallic and worn: dark steel, gunmetal gray, with subtle rust stains, grime, panel seams, warning decals, and industrial markings. Small rectangular windows and light strips scattered across the surface emit soft warm orange and white light, emphasizing scale. Design feels utilitarian, military-industrial, and ancient yet functional, like a megacity that has been expanded and modified over centuries.