Game V: Hegemon (spoilers)

General
Try to build whatever new order you can on the ashes of the Thaumatarchy.

"Game 5 is shaping up to have up to thirty distinct post-Hegemonic factions in play. Three major ones, plus potentially a fourth (that’s yours, depending on whether you decide to go big league), interacting with a host of more localized factions as allies, rivals, sworn enemies, buffers, etc.

"The choices you make in Games 2-4 (and plenty of the ones you’ve already made in  Uprising ) will affect those factions–their strength and morale, their capacities, their attitudes toward you. Or in some cases whether they even survive to Game 5 to trouble you/your rivals." (source)

Elsewhere, the author wrote that four of the Game 5 factions will be headed by powerful Theurges: "At 6 INT, you’d have a decent chance in a toe-to-toe Theurgic duel against 3 out of 4 of the ones I have in mind. (The last one would require, let’s say, a 9 INT or special circumstances.)" (source)

Chapter One: Ashes at Dawn
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Chapter Two: The Sanguine Tide
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Chapter Three: The Shattered Field
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Chapter Four: To Strange Horizons
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