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.
Rescued Kidman without Joseph taking any damage in Chapter 5.
Killed 400 enemies.
Killed 10 enemies using the Rocket Launcher.
Opened the gate to the village without killing a single enemy in Chapter 2.
Killed 5 enemies in a row with a sneak kill without being discovered.
Collected every collectable in the game.
Defeated Laura before riding the elevator in Chapter 10.
Completely upgraded all weapons.
Completely upgraded three weapons.
Killed 5 enemies with a torch.
Finished Chapter 8 without firing a single weapon.
Upgraded all options in the Stock menu.
Completed the game on Casual difficulty.
Completed the game on Survival difficulty.
Defeated the ultimate evil within.
Opened up all the lockers in the save room.
Removed an invisible enemy from the equation.
Powered up all electrical equipment simultaneously in the subway in Chapter 14.
Fully upgraded all of Sebastian's attributes.
Drove down the highway without hitting a single enemy in Chapter 12.
Outran a gigantic threat in the city.
Completely upgraded one weapon.
Killed 200 enemies.
Killed 25 enemies with melee attacks.
Ended a monstrosity in the underground garage.
Escaped from the Catacombs killing only 2 Keepers in Chapter 7.
Escaped the Keeper beneath the catacombs.
Took out both guardians before the church.
Saved Joseph from falling off a ledge in Chapter 6.
Finished off a shrieking beast.
Killed 30 enemies.
Experienced the vision in the Hospice in Chapter 4.
Took out the Sadist with a sneak kill in Chapter 3.
Defeated the Sadist within the village.
Killed 3 living enemies with one drop of a match.
Sneak Killed an enemy after hitting them with a bottle.
Complete the game on Nightmare difficulty
Kill 5 enemies with each type of Agony Bolt.
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.
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 Research Documents in The Assignment.
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)
Clear The Assignment 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.
Saved Sebastian's life in the hotel. (Ch. 4)
Cleared Chapter 3, "Illusions."
Turn on the generator using no more than 10 chemical lights. (Ch. 3)
Get through the hotel without being spotted or killing any enemies. (Ch. 4)
Clear The Consequence in KURAYAMI Mode.
Killed 10 basic Haunted with environmental traps in The Executioner.
Got payback on the cop who took down your predecessor.
Killed 10 basic Haunted with the chainsaw.
Collected all Daughter's Diaries in The Executioner.
Cleared the basement of the manor house in The Executioner.
Cleared the first and second floors of the manor house in The Executioner.
Used Executions on 20 basic Haunted.
Complete all Torments.
Purchase all items in the Shop.
Clear The Executioner without taking any damage.