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