Skyships of the Wastes
Originally consisting of a major oasis and a few neighboring archipelagos and oases, the empire went through rapid expansion during the airship wars.
Currently is not actively conquering anyone, but it has had repeated skirmishes with the Pictan Clans over control of the Pictan Archipelago, of which they currently control about a quarter.
Other holdings include Vadia.
The language of the Empire is Imperial Standard. This has also become the international language, used by traders, travelers, bankers and for discussion of engineering and science. Only well traveled or well educated people outside the Empire speak it though, as most such people know only their own languages.
Cultural stylings not yet decided.