A 3D game asset of a majestic crown, dark fantasy meets sci-fi and deep sea theme. Asymmetrical biomechanical structure, intertwining skeletal abyssal black coral with futuristic thick mechanical cables. Central focal point is a pressurized glowing cyan energy reactor core covered in thick glass. Jagged spikes resembling anglerfish lures with glowing bioluminescent tips. Tarnished dark bronze and gunmetal materials mixed with organic barnacle-like vents. Wet and slick surface, intricate cybernetic glowing circuit patterns emitting neon green and cyan light. PBR realistic textures, high metallic reflection, low roughness wet look, intense emissive lights. Isolated on solid black background, studio lighting, 8k resolution, Unreal Engine 5 render style.