The system of “zones” is one of the many things that makes Xarcadia such a unique world. The planet of Earth is divided up into regions based upon human settlements, significant landmarks, or commonly traveled areas; in contrast, Xarcadia is split up into “zones” based upon its macrobiomes. These zones can be enormous in scale, as they are composed solely of a singular climate area.
Xarcadia inhabits the Goldilocks zone of its nearest star, and possesses a rich diversity of ecosystems. There are steaming rainforests and sweltering deserts, icy mountains and treacherous volcanoes. Some areas, like the beaches of Seafoam Shore, are gentle and pleasant; others, like the frozen tundras of Glacier Glades, are inhospitable to anyone but the hardiest of Xarcadians.
Cosmopolis is a special case: it is both the largest singular zone on the planet as well as the only one that is totally artificial. It is a gargantuan city that covers a huge quantity of the world’s landmass – it is also the only zone that is so large as to have sub-zones, known as “districts”. These districts can be very different from one another depending on the culture of its inhabitants and the climates they border. There are enormous districts dedicated entirely to entertainment, gambling, and leisure. Some districts are situated on the world so as to be in permanent night, simply for the perpetual pleasure of stargazing.
Transportation is normally done by portals for convenience. As the zones are so massive, it is hard to travel between them without some form of vehicle; interzonal railways are the most accessible method of transport for those who cannot use portals. Airships and buses are a common sight in the more populated districts of Cosmopolis, but see little use outside of the city.
Xarcadia’s ecology is highly unusual for a variety of reasons, the most pressing being that unlike the Earth, the central planet and its orbiting bodies experience no seasons. Weather is consistent across the world; hot regions are always hot, and cold regions are always cold. The northern pole is in perpetual daylight, and the south is always deprived of sunlight.