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