It appears there's a game within the game of the game. Sphere turns out to be Spheres. It is said that those, who reach the Inner Sphere and overcome the quests, will be rewarded with artifacts of unheard powers. Possessing such powers will dominate the spheres and the players and creatures within. Rumors tell, you either will posses good or demonic powers, turning the Spheres Good or bad. Now, players gather in Parties to try reach the inner Sphere and collect these treasures. No one has succeeded finding these ultimate powers. Yet.
As players succeed working their way towards the Inner Sphere, it seems that not all is what it appears to be. 

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First edition, raw writing