Full list of all 26 Pillars of Eternity achievements worth 1,000 gamerscore. It takes around 80-100 hours to unlock all of the achievements on Xbox One.
Complete Act I
Complete Act II
Complete Act III
Complete the game
Apply 5 or more different enchantments
Create 5 or more different food items
Create 3 or more different scrolls
Create 3 or more different potions
Place 5 or more trap items
Complete the game killing fewer than 175 creatures and NPCs
Complete the game killing 1200 or more creatures and NPCs
Complete at least 5 upgrades in the stronghold
Complete all of the upgrades in the stronghold
Kill the sky dragon and adra dragon
Complete all of the god appeasement quests
Visit every map (excluding those in The White March)
Attain rank 3 in at least three Dispositions
Complete a Minor, Average, Major, Grand, and Legendary stronghold adventure
Defend your position as the master of Caed Nua
Restart the fabled White Forge
Defeat the dragon that dwells in the White March
Complete the Siege of Crägholdt quest
Defeat the menace of Mowrghek Îen
Reach the reliquary in the Abbey of the Fallen Moon
Stop the threat you saw in your dreams
Recruit all companions (excluding those in The White March)