Here is the full list of all 55 Pillars of Eternity II: Deadfire achievements.
Recruited all Companions.
Maximize positive relationship with a Companion.
Reach Neketaka
Name your first Uncharted Island.
Repair your ship and prepare to sail the seas.
Establish a link with Eothas to track his movements.
Confront Eothas in Magran's Teeth.
Confront Eothas in Ukaizo.
Complete the Huana faction questline.
Complete the Príncipi faction questline.
Complete the Vailian Trading Company faction questline.
Complete the Royal Deadfire Company faction questline.
Complete the "Blow the Man Down" quest
Complete the "Berkana's Folly" quest
Complete the "A Paradise of the Mind" quest
Complete "Nemnok the Devourer" quest
Sail to all major ports in the Deadfire
Recruited all Sidekicks.
Create an adventurer at an Adventurer's Hall.
Maximize negative relationship with a Companion.
Name all of the Uncharted Islands.
Attach your first ship upgrade.
Attach each type of upgrade on a single ship.
Acquire each type of ship in the game.
Assign a crew member to all slots on a single ship.
Acquired First Captain Rank.
Acquired Master Captain Rank.
Finish 15 Bounties.
Unlock all powers of a Soulbound item.
Create five or more different potions.
Create three or more different spell scrolls.
Enchant five items.
Create five or more different bombs.
Place five traps.
Deal with two Dragon dilemmas
Reach level twenty with the player character.
Survive an attack from a mutinous crew.
Defeat the Messenger.
Decide the fate of Inquisitor Naxiva, St. Waidwen, and King Wingauro o Watūri I.
Earn the title of contender in the Crucible.
Complete the Archives wing of the Halls Obscured.
Complete the Collections wing of the Halls Obscured.
Create a pet using the Critter Cleaver.