Pillars of Eternity Wiki

Mega Boss Battles refers to a collection of content released for free between the release of Seeker, Slayer, Survivor and The Forgotten Sanctum. Each patch added a unique and powerful Mega Boss to the game.

Items in italics are quoted directly from the game.

Mega Bosses are end game challenges that you can take on in the Deadfire and are meant to test your party's mettle. These fights are meant to be for high level parties, so don't expect to be able to tackle them right when you get the Defiant out on the seas of the archipelago.