Airborne Kingdom is often described as a chill city-building experience, and it's about to get chill-ier with the Airborne Kingdom: The Lost Tundra update.

Coming September 19, The Lost Tundra is a new, frigid biome far to the north. We intend for you to explore it once you've finished the game and already have a stable kingdom, since it'll be a challenge. There is no Food, Water, or Coal, so maintaining your kingdom is a difficult task. To make matters worse, the temperature takes a toll on the kingdom's very structure, freezing parts and lowering their efficiency. For the first time, we're impacting Lift, Propulsion, and Resource buildings, so falling out of the sky is not out of the question.

The effects can be mitigated with new Furnace buildings but at the cost of resources and additional weight. Where do you focus your Furnaces, or where will you overbuild to avoid the cost? Are your Workers more important to boost Coal production, scavenge construction resources, or operate the new buildings? It throws a wrench into your carefully planned kingdom on every level, and almost makes you feel like you're at the beginning of the game again — making key choices on weight, speed, and infrastructure.

The challenge is accompanied by great rewards, too. Hidden locations unlock new cosmetics and customizations, rewarding those brave and clever enough to survive this desolate new frontier. We won't call out all of these just yet, though you can spot some in the announcement trailer (likes and RT appreciated!):

https://twitter.com/AWanderingBand/status/1559548049248092161