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.
Drove down the highway without hitting a single enemy in Chapter 12.
Completely upgraded all weapons.
Finished Chapter 8 without firing a single weapon.
Killed 10 enemies using the Rocket Launcher.
Rescued Kidman without Joseph taking any damage in Chapter 5.
Took out the Sadist with a sneak kill in Chapter 3.
Completely upgraded three weapons.
Defeated Laura before riding the elevator in Chapter 10.
Killed 25 enemies with melee attacks.
Saved Joseph from falling off a ledge in Chapter 6.
Opened the gate to the village without killing a single enemy in Chapter 2.
Upgraded all options in the Stock menu.
Completely upgraded one weapon.
Fully upgraded all of Sebastian's attributes.
Collected every collectable in the game.
Finished the game without upgrading any skills with green gel.
Escaped from the Catacombs killing only 2 Keepers in Chapter 7.
Sneak Killed an enemy after hitting them with a bottle.
Completed the game on Casual difficulty.
Completed the game on Survival difficulty.
Defeated the ultimate evil within.
Killed 400 enemies.
Powered up all electrical equipment simultaneously in the subway in Chapter 14.
Removed an invisible enemy from the equation.
Killed 5 enemies in a row with a sneak kill without being discovered.
Outran a gigantic threat in the city.
Ended a monstrosity in the underground garage.
Killed 200 enemies.
Escaped the Keeper beneath the catacombs.
Took out both guardians before the church.
Killed 5 enemies with a torch.
Finished off a shrieking beast.
Killed 3 living enemies with one drop of a match.
Killed 30 enemies.
Experienced the vision in the Hospice in Chapter 4.
Defeated the Sadist within the village.
Complete the game on Nightmare difficulty
Open up all the lockers in the save room.
Kill 5 enemies with each type of Agony Bolt.
Finish the game with a clear time of under 5:00:00.
Finish the game on 悪夢(AKUMU) mode.
Cleared Chapter 2, "Crossing Paths."
Collected all Personnel Files in The Assignment.
Cleared Chapter 1, "An Oath."
Lure an enemy with a phone call and lock them in a room. (Ch. 1)
Use a single trap to kill two or more enemies in The Assignment. (Ch. 2)
Survive the duel without using any electronic devices in the environment. (Ch. 2)
Get a Cadaver to grab and kill a Haunted. (Ch. 2)
Collect all Research Documents in The Assignment.
Complete the hidden letter in The Assignment.
Clear The Assignment in KURAYAMI Mode.
Cleared Chapter 3, "Illusions."
Turn on the generator using no more than 10 chemical lights. (Ch. 3)
Save Sebastian's life in the hotel. (Ch. 4)
Get through the hotel without being spotted or killing any enemies. (Ch. 4)
Defeat Ruvik before the final showdown in The Consequence. (Ch. 4)
Clear Chapter 4, "A Ghost is Born."
Collect all Research Documents in The Consequence.
Collect all Personnel Files in The Consequence.
Complete the hidden letter in The Consequence.
Clear The Consequence in KURAYAMI Mode.
Collect all Daughter's Diaries in The Executioner.
Complete all Torments.
Purchase all items in the Shop.
Kill 10 basic Haunted with the chainsaw.
Kill 10 basic Haunted with environmental traps in The Executioner.
Use Executions on 20 basic Haunted.
Clear the first and second floors of the manor house in The Executioner.
Clear the basement of the manor house in The Executioner.
Clear The Executioner without taking any damage.
Get payback on the cop who took down your predecessor.