Dynamic Skies

Dynamic Skies’ procedural skybox in place of the port’s own dome, under the enhanced environments: its sun and scattering, textured cloud layers per weather, twinkling stars, both moons on their orbits, its fog colours and distances, its longer sunrise and sunset, and a lightning flash under thunder. Off returns the port’s own procedural sky.

Dynamic Skies is an entry in the Built-in mods database, listed under On.

Several of these change core rules, so the guide pages describe the game with them on. 'Fixed by the room' means online everyone plays with the mod at its shipped settings, whatever they choose offline.