Average technological level
They were very advanced for their time. Their cities were built around geothermal vents, and they harnessed that power for central heating through brass pipes. Their primary metal was bronze, which they used for weaponry and infrastructure.
Common Dress code
Due to their climate, they usually wore clothing made from fur. In the winter, they wore heavy parkas with an inner shirt of softer fur that faced the skin. During the long, cool summers, they wore lighter skins or knitted clothing made from wool. Bright colours were expensive to dye and reserved for the upper classes. There were not many differences between male and female dress, as both were adapted for the cold. The most common decoration on clothing was beaded patterns around the trim or on the chest.
They had an empire centred on the city-state of Fjafev. The empire expanded across the narrow sea to demand tribute from the villages in a more agriculturally rich area.