Full list of all 79 Darkest Dungeon II achievements.
The base game contains 65 achievements, and there is 1 DLC pack containing 14 achievements.
Kill 100 Fisherfolk
Kill 100 Gentry
Complete Ambition
Defeat 3 lair bosses in a single expedition
Visit every Inn
Complete Obsession
Complete all heroes' entire backstory
Complete Resentment
Enter the Mountain with a full party and all positive relationships
Defeat the lair boss found in the Shroud
Defeat Death
Treat a disease, remove a negative quirk, and lock-in a positive quirk at a single Field Hospital
Abandon an expedition
Kill 100 Fanatics
Unlock 50% of the Altar of Hope
Have a trophy, pet, and four stagecoach items equipped all at once
Defeat the lair boss found in the Sprawl
Clear the Shroud
Clear the Sluice
Kill 100 Cadavers
Unlock the Flagellant
Kill 100 Creatures
Master 5 skills on a single hero during an expedition
Unlock the Runaway
Unlock the Leper
Unlock the Vestal
Kill 100 Pillagers
Kill 100 Cosmic beings
Kill 100 Gaunt
Party wipe against any Confession endboss
Unlock 25% of the Altar of Hope
Complete any hero's entire backstory
Drive 1,000 leagues in the stagecoach
Unlock the Occultist
Defeat the Antiquarian
Clear the Foetor
Purchase an indelible trinket from the Hoarder
Defeat the lair boss found in the Foetor
Find a replacement for a fallen hero
Defeat the lair boss found in the Tangle
Apply a memory onto a hero
Complete Denial
Unlock the Hellion
Clear the Sprawl
Defeat a Shambler
Unlock the Jester
Have a hero meltdown
Clear the Tangle
Have a hero become resolute
Reach the first Inn
Apply 5 memories onto a single hero
Unlock 100% of the Altar of Hope
Play the game on the anniversary of release
Land the killing blow on a lair boss from the Bounty Hunter
Defeat a Shambler with Shambler's Spawn equipped
Kill 100 Swine
Party wipe against each Confession endboss
Drive 20,000 leagues in the stagecoach
Lose a hero who was full of memories
Hire the Bounty Hunter
Enter the Mountain with a full party and all negative relationships
Have a full roster of heroes with at least one memory each
Complete Cowardice
Defeat all 5 Confessions with the same four heroes without any of them dying
Defeat the final boss with the Stygian Blaze equipped
Land a Riposte with Man-at-Arms, Highwayman, and Duelist in a single fight
Land the killing blow on a lair boss with The Boot from the Duelist
Deal 20 damage with a Riposte skill from the Duelist
Complete the Duelist's backstory
Apply 5 memories onto the Duelist
Apply 5 memories onto the Crusader
Complete the Crusader's backstory
Complete The Lost Crusade
Have the Highwayman and the Crusader form a positive relationship
Complete an expedition with The Usual Suspects