Also known as "Nanomachines". Metal and computers are integrated at the nano level, and their behavior is akin to life itself. They can freely transform and have the ability to replicate by bonding with surrounding substances at the molecular level for self-repair. This is the latest type of UFO that can endlessly reproduce pre-programmed technology by absorbing high-voltage energy. Steampunk industrial fantasy blueprint of a bulky, low-tech dieselpunk mecha, rust and oil dripping, towering low-angle shot over shattered concrete ruins, thick exposed copper cables, welding lights and flames from the internal combustion engine, blue-steel twilight atmosphere with steam clouds, partially burnt vintage engineering prints