The Hero Wars themselves are the wars between Sartar and the Lunar Empire. Here’s a super quick overview:
The Hero Wars are thirty-year conflict that ends the Third Age of Glorantha. The player characters play adventurers amidst a massive, world-wide struggle of magic, myth, and military that spills over from the Mundane World into the Hero Wars, and even threatens the eternal stability of the Gods World. Before the struggle is over the adventures must make decisions that will affect their survival, their society, and indeed the entire cosmos.
The campaign is presented in five phases, with two phases taking place prior to the default campaign start.
Lunar Occupation (1602-1621)
This is the period of Lunar domination in Dragon Pass. The end of the phase has the Lunar Empire in seeming final triumph.
Rebellion (1621-1624)
During this phase, the Lunar Empire suffers numerous reversals, while its foes seek new weapons against it.
Prince of Sartar (1625-1629)
This is the default start of the Dragon Pass campaign. The phase begins with the destruction of the Lunar Army in Dragon Pass with the Dragonrise. Sartar is liberated and Argrath rises to power. The phase ends with Argrath marrying the Feathered Horse Queen and becoming the King of Dragon Pass. This is the default starting point of the Hero Wars campaign.
King of Dragon Pass (1630-1643)
This phase sees Argrath as ruler of Dragon Pass. After nearly destroying itself with a civil war, the Lunar Empire desperately tries to recover its position but is defeated. In the end, Argrath adds the former Lunar Provinces to his empire.
Twilight of the Gods (1644-1655)
The Lunar Empire strikes back with a vengeance, using Chaos and weapons taken from strange realms. Sartar is defeated, and a desperate Argrath performs a mad Lightbringers Quest that changes the world. Nightmares awaken, sheets of ice cover much of the world, and mutual enemies recognize each themselves as mirrors of each other. The phase ends with the destruction of the Red Moon and the rise of the White Moon.
Is there going to be a Hero Wars campaign book? Yes there is. Been working on it for a couple of years. Most of it is done – once Sartar is out, I hope to finish it up to tie into WBRM. Think of it more like Boy King than the Grand Pendragon Campaign.