Full list of all 120 Darkest Dungeon achievements. It takes around 200 hours to unlock all of the achievements in the base game on Windows.
The base game contains 69 achievements, and there are 3 DLC packs containing 51 achievements.
Complete the game on Radiant
Kill a Squiffy Ghast with a Jester
Kill Squiffy Ghast, Swine Skiver, Bone Bearer and Hateful Virago
Kill the Shrieker
Defeat the brigand Vvulf
Complete the game on Stygian
Kill all bosses
Complete all Caretaker Goals
Dismas and Reynauld Made it to the final Darkest Dungeon Quest
Lose a hero to a Maggot
Lose a hero to a trap
Lose a hero to hunger
Lose a hero to an obstacle
Party wipe on a boss
Have a character survive 5 attacks at Death's Door in a single combat
Fully upgrade the Tavern
Fully upgrade the Abbey
Complete the game with default difficulty options
Complete the game
Complete the game within 99 Weeks
Complete a dungeon with all 4 heroes afflicted
Kill any boss with a party of four afflicted heroes
Lose all four heroes on a Darkest Dungeon quest
First party wipe
Start a Darkest Dungeon quest with four heroes of resolve level 0
Lock a positive Quirk in the Sanitarium
Acquire all your Ancestor's Trinkets
Fully upgrade a hero's weapons and armor
Fully upgrade the Blacksmith
Kill any boss with only one hero remaining
Lose a hero to Wilbur
Slay 1000 enemies
Fully upgrade the Guild
Defeat 100 Unholy enemies
Slay a Shambler
Fully upgrade the Town
Reach week 104
Complete 25 quests
Defeat 100 Beast enemies
Walk 500 steps with one hero
Lose your first hero to heart attack
Collect at least 20,000 gold from a single quest
Kill 50 enemies with one hero
Defeat 100 Human enemies
Learn a new Camping skill
Complete 10 quests
Complete a long quest
Defeat 100 Eldritch enemies
Have one of each class on your roster
Collect at least 30 heirlooms from a single quest
Lose your first hero
Lose a Legendary (Level 6) hero
Complete a quest
Complete a quest in all four regions
Fully upgrade at least four of a hero's skills
Upgrade a Combat skill
Treat a hero in the Tavern
Treat a hero in the Abbey
Reach the Estate
Remove a Quirk in the Sanitarium
Abandon a quest
Dismiss your first hero
Visit the Graveyard
Slay your first boss
Complete a medium quest
Start a quest with all four heroes of Resolve Level 6
Raise a hero to Resolve Level 6
Raise 4 heroes to Resolve Level 6
Reach week 52
Have your entire roster affected by the crimson curse
Build The Red Hook
Kill an ally while under the Curse
Lose a hero to Wasting Away from the Curse
Defeat the Countess
Defeat the Viscount
Defeat the Baron
Collect The Invitation
Contract the Crimson Curse via contagion
Defeat the Fanatic
Collect your first Trinket Set
Rescue someone
Get infected by the Crimson Curse
Build your first district building
Recruit a flagellant
Lose a Hero Equipped with the Coat of Many Colors
Lose a Hero Equipped with the Miller's Pipe
Collect All of Color of Madness Trinkets
Build the Windmill
Fight Every Wondering Boss in Endless
Get 300 Kills
Get 200 Kills
Earn 200 Shards In One Endless Run
Get 100 Kills
Defeat the Sleeper
Defeat the Sleeper With 2 Afflicted, 2 Virtuous Heroes
Gain the Refracted Affliction
Acquire Mildred's Locket Trinket
Defeat the Miller
All 4 Heroes Dodge the Miller's Reaping
Kill the Sleeper's Herald With a Riposte
Defeat the Thing From The Stars
Use The Shard Dust Provision
Complete The First Farmstead Quest
Reach Death's Door From Farmhand's Riposte
Have a single hero survive 4 heart attacks in a single match
Have a hero survive 5 death's door checks in a single match
Reach the max Prestige level in the Butcher's Circus
Win 100 matches in the Butcher's Circus
Kill 600 enemies in the Butcher's Circus
Kill each hero class in the Butcher's Circus
Win a match in the dueling grounds
Kill an enemy hero in the first round of a match
Cause 150 heart attacks in the Butcher's Circus
Win any 10 matches without losing any heroes
Have a single hero deal deathblows to 4 enemies in a single match
Daze 10 enemies in the Butcher's Circus
Play your first match in the Butcher's Circus
Win a match using ONLY stress against your enemies
Win a match without using any trinkets
Cause an enemy hero to have a heart attack