Here is the full list of all 51 The Evil Within 2 achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Completed the game on Casual difficulty or higher.
Completed the game on Survival difficulty or higher.
Completed the game on Nightmare difficulty or higher.
Did what needed to be done to save your daughter.
Observed all Residual Memories.
Reached the very end of the world.
Your trauma is no more.
Made it inside the enemy's stronghold.
Came to terms with your past and present.
Reminisced about every moment from your past. (Ch. 12)
Provided a Harbinger sweet release.
Stopped a true believer from playing with his favorite toy. (Ch. 11)
Experienced every traumatic encounter and made peace with your inner demons.
Opened 16 lockers.
Upgraded one of your Warden Crossbow bolts to max level.
Completed the "The Last Step" side mission.
Survived an ordeal with the help of a new friend.
Shut down a bloody performance.
Collected 20 files.
Found a potential ally in The Marrow.
Defeated the Guardian outside City Hall.
Stomped and killed 15 fallen enemies.
Completed the "Rogue Signal" side mission.
Upgraded a weapon to Level 3.
Saw a chilling vision.
Killed 60 enemies.
Used your first Red Gel.
Killed an enemy using an Ambush.
Killed 10 enemies using Sneak Kills.
Killed 30 enemies.
Crafted something for the first time.
Used your first High-Grade Weapon Parts.
Stunned an enemy standing in water using a Shock Bolt.
Acquired the Warden Crossbow.
Took the plunge back into STEM.
Completed the game in Classic Mode.
Completely upgraded all abilities.
Completely upgraded all weapons.
Crafted every type of item at least once.
Collected all files.
Opened all lockers.
Talked to Kidman about all of the photographic slides.
Acquired all standard weapons.
Collected all of the Mysterious Objects.
Used every Coffee Maker at least once.
Killed 3 enemies using upgraded Smoke Bolts.
Killed 2 or more enemies at once using oil on the ground.
Avoided unnecessary bloodshed outside City Hall. (Ch. 5)
Killed 2 or more enemies at once using a hanging lamp. (Ch. 9)
Brought your own equipment to the barbecue this time. (Ch. 14)
Opted for a cinematic experience.