post-apocalyptic bunker, survival shelter, underground vault, high-tech equipment, steel walls, reinforced doors, air filtration system, water purification, emergency lighting, stocked pantry, medical bay, living quarters, control center, radiation suits, security cameras, vault dweller, Pip-Boy interface, resource management, close-up on console, dim lighting, emergency red lights, cluttered space, survival gear, canned food, bunk beds, 3/4 view, atmospheric shadows, detailed textures, rust and wear, immersive environment, Fallout game aesthetic.