The world of Ocean is a waterlogged planet. Where the surface of the Earth is approximately 70% water, Ocean is closer to 95% water, with over 3/4 of the land that is present located at the poles.
|The planet is axis-locked1, meaning it turns on its own axis but the tilt is always towards the sun (see Fig. 1). This gives most of the the planet a normal diurnal cycle, but the South pole is always night, and at the North pole the sun never sets.
The rest of the planet is mostly temperate, getting cooler towards the South and warmer towards the North.
The Northern continent is a vast, blasted desert that would be uninhabitable without a large number of oases and freshwater springs dotting the land, and even then the only permanent settlements are around the edges of the continent where the sun actually sets.
The Southern continent is the opposite, being a frozen, mountainous land of endless night. The surface is practically uninhabitable in the dark center of the continent, but there is a massive network of tunnels and caverns honeycombing the continent deep below the ice, known as the Underdark. Days get longer and nights shorter towards the North, and the opposite happens towards the South, unaffected by seasons.
Ocean’s orbit is slightly ovoid, resulting in seasons as it moves closer and further from the sun. This creates seasons slightly differently from those on the Earth. Seasons affect both hemispheres evenly, getting relatively colder or warmer across the whole surface, and the length of days and nights are unaffected.
1 No, I don’t know if this is actually a word.