The Immortal Principality of Ustalav lies at the far northern reach of civilization, an ancient land of faded glory and decaying nobility. After centuries of decline, only the settlement of Karcau remains intact in the north, a vibrant light in the heart of a dark wilderness. Known for the widely respected Karcau Opera, the canal-riddled Village of Voices has a tradition of musical genius. Everything beyond Karcau is fog-shrouded wilds, a forgotten frontier full of danger and treasure.

Forgotten, that is, until now.

The Northern Marches campaign is an open-ended game of exploration, using the Pathfinder system and set in the world of Golarion.