I don’t like naming planets. Somewhere inside my head, I reject the idea. Our planet has a hundred different names, and none at all if you think about it. Earth. Terra. Dirt. Land. We’re too familiar with our world to give it a proper name, and the same must be true on any planet that a race lives on. I’ll start by noting the world’s most drastic geographic feature instead.
There is no sun.
This is not technically true, of course. Yes, it’s fantasy, but on the whole I prefer to write low fantasy, which tries to be very realistic. Unless it’s a planned side-effect of my supernatural elements, I try to make every effort not to bend the laws of physics and nature. There is a sun. But the inhabitants have never seen it.
There are stars in the sky, bright ones, and when the day is half over they are replaced by a wall of darkness that sweeps over everything, plunging the world into darkness (and is known by various names, most of which translate to simply ‘the black’). Their world is not a happy place, persay. The surface in uninhabitable for the most part, covered with dry snow that picks up easily in the howling wind. There are oceans, yes. If you can find them under the ice. Temperatures on the surface range from -40 to -50 degrees (Celsius), about the temperature of Northern Siberia in the winter.
The solar system my world is placed in has a sun slightly older than our own, a little larger, not quite as warm or bright. It has several planets orbiting around it, and one of them is a gas giant with several moons of various sizes. One, a little over nine-tenths of the earth’s size, is capable of sustaining life, but the drawback is that it very nearly matches the giant’s rotation cycle. As the gas giant completes a year, the moon orbits around the planet once, and in doing so stays at about the same position in relation to the sun. This populated moon has spent centuries spinning along quietly in its host’s shadow.
Long enough for its societies to collapse, its cities to fall. The preparations for the long dark were spoiled, generations after stopped learning from their parents. As the world rotated from stars to black, men lost their grasp on technology, forgot that the sun would someday return, and devolved into a much more primal race.