Full list of all 79 Darkest Dungeon II achievements.
The base game contains 65 achievements, and there is 1 DLC pack containing 14 achievements.
Defeat 3 lair bosses in a single expedition
Land the killing blow on a lair boss from the Bounty Hunter
Hire the Bounty Hunter
Kill 100 Creatures
Clear the Sluice
Party wipe against any Confession endboss
Kill 100 Pillagers
Apply a memory onto a hero
Complete Resentment
Treat a disease, remove a negative quirk, and lock-in a positive quirk at a single Field Hospital
Defeat the lair boss found in the Foetor
Unlock 25% of the Altar of Hope
Defeat the lair boss found in the Shroud
Kill 100 Gaunt
Kill 100 Cosmic beings
Find a replacement for a fallen hero
Purchase an indelible trinket from the Hoarder
Clear the Shroud
Defeat the Antiquarian
Clear the Foetor
Defeat the lair boss found in the Tangle
Unlock the Occultist
Unlock the Leper
Drive 1,000 leagues in the stagecoach
Defeat the lair boss found in the Sprawl
Complete any hero's entire backstory
Have a hero become resolute
Unlock the Jester
Unlock the Flagellant
Master 5 skills on a single hero during an expedition
Unlock the Runaway
Complete Denial
Defeat a Shambler
Unlock the Vestal
Unlock the Hellion
Clear the Sprawl
Have a hero meltdown
Clear the Tangle
Abandon an expedition
Reach the first Inn
Apply 5 memories onto a single hero
Unlock 100% of the Altar of Hope
Unlock 50% of the Altar of Hope
Play the game on the anniversary of release
Kill 100 Cadavers
Defeat Death
Kill 100 Fanatics
Kill 100 Fisherfolk
Kill 100 Gentry
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
Complete all heroes' entire backstory
Visit every Inn
Enter the Mountain with a full party and all negative relationships
Enter the Mountain with a full party and all positive relationships
Have a full roster of heroes with at least one memory each
Complete Obsession
Complete Ambition
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
Have a trophy, pet, and four stagecoach items equipped all at once
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