Ultrakolde

Ultrakolde is a fictional city in the northern frostlands of the continent Eldheim. It is known for ice-formed architecture, winter markets, and its role as a hub for polar trade and cultural exchange. The city is built on raised basalt platforms connected by canals used to transport block ice and goods.

Ultrakolde lies on a sheltered fjord in a subarctic region with long winters and short summers. Snowfall is frequent, and permafrost underlies much of the surrounding terrain. Seasonal ice routes connect the city to neighboring communities and inland stations.

The city traces its origins to migrations of the Kulden clans around the 9th century, who established a trading post at the fjord. It grew through the ice trade and seal fisheries. Ultrakolde gained de facto autonomy as a city-state in the late medieval period.

Ultrakolde operates as a guild-based city-state with a council elected from major trade and craft guilds. The economy centers on ice craftsmanship, glassmaking from silica, fish and seal products, and seasonal tourism. The city hosts a public ice market and a small harbor.

Notable institutions include the Echo Archive and the University of Ultrakolde. Landmark sites include the Glass Spire, the Frostgate, and the Ice Market. The annual Night of the Lanterns festival features ice sculptures and lantern processions, reflecting the city’s winter heritage.