Full list of all 71 The Evil Within achievements worth 1,735 gamerscore. It takes around 60-80 hours to unlock all of the achievements in the base game.
The base game contains 41 achievements worth 1,000 Gamerscore, and there are 3 DLC packs containing 30 achievements worth 735 Gamerscore.
Escape the Keeper beneath the catacombs.
Finish off a shrieking beast.
Defeat the Sadist within the village.
Take out both guardians before the church.
End a monstrosity in the underground garage.
Outrun a gigantic threat in the city.
Remove an invisible enemy from the equation.
Defeat the ultimate evil within.
Complete the game on Casual difficulty.
Complete the game on Survival difficulty.
Complete the game on Nightmare difficulty
Collect every collectable in the game.
Open up all the lockers in the save room.
Fully upgrade all of Sebastian's attributes.
Completely upgrade one weapon.
Completely upgrade three weapons.
Completely upgrade all weapons.
Upgrade all options in the Stock menu.
Use a secret explosive weapon to kill 10 enemies. (Agony Bolt effects negate results)
Kill 5 enemies with each type of Agony Bolt.
Kill 5 enemies in a row with a sneak kill without being discovered.
Kill 5 enemies with a torch.
Kill 30 enemies.
Kill 200 enemies.
Kill 400 enemies.
Kill 25 enemies with melee attacks.
Sneak Kill an enemy after hitting them with a bottle.
Kill 3 living enemies with one drop of a match.
Finish the game with a clear time of under 5:00:00.
Finish the game without upgrading any skills with green gel.
Finish the game on 悪夢(AKUMU) mode.
Have they lost their minds? Better get past them without a fight. (Ch.2)
His engine roars, but my knife is strong enough to take him out. (Ch.3)
That vision in the hospice... why here? Why now? (Ch. 4)
The water's rising, but we'll get out of this without a scratch. (Ch. 5)
Who wouldn't reach out for a man clinging for his life? (Ch. 6)
It won't stay dead! Better only fight when I have to. (Ch. 7)
This cave echoes like crazy. Better put the gun away and keep quiet. (Ch. 8)
Enough running! I'll burn her to the ground right here! (Ch. 10)
I'm not taking any chances, this bus can't take much more damage. (Ch. 12)
I should get this whole generator panel running just in case. (Ch. 14)
Cleared The Assignment in KURAYAMI Mode.
Collected all Research Documents in The Assignment.
Cleared Chapter 2, "Crossing Paths."
Completed the hidden letter in The Assignment.
Got a Cadaver to grab and kill a Haunted. (Ch. 2)
Collected all Personnel Files in The Assignment.
Survived the duel without using any electronic devices in the environment. (Ch. 2)
Used a single trap to kill two or more enemies in The Assignment. (Ch. 2)
Cleared Chapter 1, "An Oath."
Lured an enemy with a phone call and locked them in a room. (Ch. 1)
Cleared The Consequence in KURAYAMI Mode.
Cleared Chapter 4, "A Ghost is Born."
Didn't really Defeat Ruvik before the final showdown. (Ch. 4)
Collected all Research Documents in The Consequence.
Completed the hidden letter in The Consequence.
Collected all Personnel Files in The Consequence.
Got through the hotel without being spotted or killing any enemies. (Ch. 4)
Saved Sebastian's life in the hotel. (Ch. 4)
Cleared Chapter 3, "Illusions."
Turned on the generator using no more than 10 chemical lights. (Ch. 3)
Cleared The Executioner without taking any damage.
Purchased all items in the Shop.
Completed all Torments.
Got payback on the cop who took down your predecessor.
Collected all Daughter's Diaries in The Executioner.
Cleared the basement of the manor house in The Executioner.
Killed 10 basic Haunted with environmental traps in The Executioner.
Cleared the first and second floors of the manor house in The Executioner.
Killed 10 basic Haunted with the chainsaw.
Used Executions on 20 basic Haunted.