Curse of the Crimson Throne was the second adventure path released in the Pathfinder Adventure Path series and debuted with Edge of Anarchy in March 2008. Written by Nicolas Logue, F. Wesley Schneider, Richard Pett, Michael Kortes, Greg A. Vaughan, and Tito Leati, the campaign was originally released as a Dungeons & Dragons 3.5 Adventure Path, and has been supported by a number of supplementary products, including a Pathfinder Cards deck and a map folio.

At GAMA 2016, Paizo announced an updated hardcover compilation of the Adventure Path using the Pathfinder Roleplaying Game rules, which was released in October 2016.

“The king is dead! In the Varisian port city of Korvosa, the death of a monarch leads to chaos, and only the PCs can hope to save the city from its own darkest tendencies. As the rule of the young queen grows more and more draconian, it's up to a band of bold adventurers to stop the spread of tyranny before all of Korvosa is crushed beneath her iron fist.
In the Curse of the Crimson Throne Adventure Path, the heroes delve into the depth of urban adventure in order to stop riots, combat a plague, root out organized crime, and rescue political prisoners before escaping to the harsh badlands of the Storval Plateau, where only the friendship of the barbaric Shoanti and a weapon drawn from the heart of a gothic castle can give them the strength to return and depose the evil queen once and for all."