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.
Killed 5 enemies with each type of Agony Bolt.
Killed 10 enemies using the Rocket Launcher.
Rescued Kidman without Joseph taking any damage in Chapter 5.
Escaped from the Catacombs killing only 2 Keepers in Chapter 7.
Finished Chapter 8 without firing a single weapon.
Took out the Sadist with a sneak kill in Chapter 3.
Completed the game on Nightmare difficulty
Finished the game on 悪夢(AKUMU) mode.
Finished the game with a clear time of under 5:00:00.
Drove down the highway without hitting a single enemy in Chapter 12.
Collected every collectable in the game.
Opened up all the lockers in the save room.
Completely upgraded all weapons.
Defeated Laura before riding the elevator in Chapter 10.
Completely upgraded three weapons.
Saved Joseph from falling off a ledge in Chapter 6.
Killed 400 enemies.
Killed 25 enemies with melee attacks.
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.
Completely upgraded one weapon.
Upgraded all options in the Stock menu.
Fully upgraded all of Sebastian's attributes.
Completed the game on Casual difficulty.
Completed the game on Survival difficulty.
Finished the game without upgrading any skills with green gel.
Defeated the ultimate evil within.
Removed an invisible enemy from the equation.
Powered up all electrical equipment simultaneously in the subway in Chapter 14.
Outran a gigantic threat in the city.
Killed 200 enemies.
Ended a monstrosity in the underground garage.
Sneak Killed an enemy after hitting them with a bottle.
Killed 5 enemies with a torch.
Escaped the Keeper beneath the catacombs.
Took out both guardians before the church.
Killed 3 living enemies with one drop of a match.
Finished off a shrieking beast.
Killed 30 enemies.
Experienced the vision in the Hospice in Chapter 4.
Defeated the Sadist within the village.
Cleared The Assignment in KURAYAMI Mode.
Collected all Personnel Files in The Assignment.
Lured an enemy with a phone call and locked them in a room. (Ch. 1)
Completed the hidden letter in The Assignment.
Cleared Chapter 2, "Crossing Paths."
Got a Cadaver to grab and kill a Haunted. (Ch. 2)
Collected all Research Documents 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."
Cleared The Consequence in KURAYAMI Mode.
Collected all Research Documents in The Consequence.
Completed the hidden letter in The Consequence.
Saved Sebastian's life in the hotel. (Ch. 4)
Cleared Chapter 4, "A Ghost is Born."
Didn't really Defeat Ruvik before the final showdown. (Ch. 4)
Collected all Personnel Files in The Consequence.
Got through the hotel without being spotted or killing any enemies. (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.
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.