Physically, autocthnoia is a vast hollow sphere consisting of a variety of machines, that all seem to interlock to some unknowable purpose.  The core of Autocthonia is the admin sector, which consists of vast arrays of silicon computer chips arranged around electrical conduits, and odd vibrating crystals that seem to grow in organic formations.  It is from here that the Computer interfaces with the rest of Autocthonia, and controls the vast station from its throne in the metropolis of Claslat.<br/><br/>The admin sector seems to be fed by the electrical sector, a sector consisting largely of copper wiring and conductive machinery which produces massive amounts of electrical energy, which gets channeled to unknown purposes inside the administrative sector.  A good portion of the electricity from the electrical sector gets fed into the diesel sector, where it detonates fuel vapors and activates vast pistons, which power even more of the processes in the electrical sector.  The diesel sector itself has an ocean of oil in it, and high speed turbines which suck in the needed oxygen to sustain the chemical reactions which run the sector.<br/><br/>The heat and exhaust produced in the diesel sector gets radiated to the furnace sector, where the heat is concentrated into blast furnaces to create rivers of molten metal, and power vast smashing machines which seem to create most of the alloys of the station.  Somehow, the heat and pressure in the furnace sector converts the carbon dioxide that flows into the sector back into petroleum, which flows back into the oil ocean by some incredibly complicated process.<br/><br/>The waste heat produced by the furnace sector rises to the clockwork sector, where it boils an ocean of water into steam, which powers a wide variety of analytical machines and driveshafts, which feed into the electrical sector and power the dynamos whch keep the machine world running.  When humans first came to autocthonia, these cycles had ceased entirely, but now that they have been repaired, they seem to be self sustaining, and accelerating towards some end.  Nobody knows if the Computer understands exactly what Autocthonia is designed for, though study of its machines and processes has proved extremely productive.<br/><br/>My next post will cover character creation rules and equipment rules, unless anyone has questions about the setting.  Hopefully I've made it obvious enough!