Full list of all 71 The Evil Within achievements. It takes around 40-50 hours to unlock all of the achievements in the base game on Windows.
The base game contains 41 achievements, and there are 3 DLC packs containing 30 achievements.
Finish the game with a clear time of under 5:00:00
Finish the game on 悪夢(AKUMU) mode.
Kill 400 enemies.
Enough running! I'll burn her to the ground right here! (Ch. 10)
Fully upgrade all of Sebastian's attributes.
Completely upgrade three weapons.
Completely upgrade all weapons.
Upgrade all options in the Stock menu.
Open up all the lockers in the save room.
Use a secret explosive weapon to kill 10 enemies. (Agony Bolt effects negate results)
Completely upgrade one weapon.
Kill 5 enemies with each type of Agony Bolt.
Defeat the ultimate evil within.
Complete the game on Casual difficulty.
Complete the game on Survival difficulty.
Complete the game on Nightmare difficulty.
Finish the game without upgrading any skills with green gel.
Collect every collectable in the game.
I should get this whole generator panel running just in case. (Ch. 14)
Remove an invisible enemy from the equation.
Outrun a gigantic threat in the city.
I'm not taking any chances, this bus can't take much more damage. (Ch. 12)
End a monstrosity in the underground garage.
This cave echoes like crazy. Better put the gun away and keep quiet. (Ch. 8)
Escape the Keeper beneath the catacombs.
It won't stay dead! Better only fight when I have to. (Ch. 7)
Kill 200 enemies.
Who wouldn't reach out for a man clinging for his life? (Ch. 6)
His engine roars, but my knife is strong enough to take him out. (Ch.3)
Kill 25 enemies with melee attacks.
Have they lost their minds? Better get past them without a fight. (Ch.2)
Kill 5 enemies in a row with a sneak kill without being discovered.
Take out both guardians before the church.
Finish off a shrieking beast.
The water's rising, but we'll get out of this without a scratch. (Ch. 5)
Kill 3 living enemies with one drop of a match.
Kill 30 enemies.
That vision in the hospice... why here? Why now? (Ch. 4)
Defeat the Sadist within the village.
Kill 5 enemies with a torch.
Sneak Kill an enemy after hitting them with a bottle.
Clear The Assignment in KURAYAMI Mode.
Use a single trap to kill two or more enemies in The Assignment. (Ch. 2)
Clear Chapter 2, "Crossing Paths."
Complete the hidden letter in The Assignment.
Collect all Personnel Files in The Assignment.
Collect all Research Documents in The Assignment.
Get a Cadaver to grab and kill a Haunted. (Ch. 2)
Survive the duel without using any electronic devices in the environment. (Ch. 2)
Clear Chapter 1, "An Oath."
Lure an enemy with a phone call and lock them in a room. (Ch. 1)
Clear The Executioner without taking any damage.
Purchase all items in the Shop.
Complete all Torments.
Get payback on the cop who took down your predecessor.
Clear the basement of the manor house in The Executioner.
Collect all Daughter's Diaries in The Executioner.
Kill 10 basic Haunted with environmental traps in The Executioner.
Kill 10 basic Haunted with the chainsaw.
Clear the first and second floors of the manor house in The Executioner.
Use Executions on 20 basic Haunted.
Clear The Consequence in KURAYAMI Mode.
Defeat Ruvik before the final showdown in The Consequence. (Ch. 4)
Clear Chapter 4, "A Ghost is Born."
Complete the hidden letter in The Consequence.
Collect all Personnel Files in The Consequence.
Collect all Research Documents in The Consequence.
Get through the hotel without being spotted or killing any enemies. (Ch. 4)
Save Sebastian's life in the hotel. (Ch. 4)
Clear Chapter 3, "Illusions."
Turn on the generator using no more than 10 chemical lights. (Ch. 3)