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.
Talked to Kidman about all of the photographic slides.
Came to terms with your past and present.
Reminisced about every moment from your past. (Ch. 12)
Provided a Harbinger sweet release.
Experienced every traumatic encounter and made peace with your inner demons.
Stomped and killed 15 fallen enemies.
Completed the "The Last Step" side mission.
Upgraded one of your Warden Crossbow bolts to max level.
Used every Coffee Maker at least once.
Survived an ordeal with the help of a new friend.
Shut down a bloody performance.
Found a potential ally in The Marrow.
Collected 20 files.
Defeated the Guardian outside City Hall.
Saw a chilling vision.
Used your first Red Gel.
Upgraded a weapon to Level 3.
Killed an enemy using an Ambush.
Killed 60 enemies.
Used your first High-Grade Weapon Parts.
Completed the "Rogue Signal" side mission.
Killed 30 enemies.
Killed 10 enemies using Sneak Kills.
Crafted something for the first time.
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 16 lockers.
Opened all lockers.
Acquired all standard weapons.
Collected all of the Mysterious Objects.
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)
Stopped a true believer from playing with his favorite toy. (Ch. 11)
Brought your own equipment to the barbecue this time. (Ch. 14)
Opted for a cinematic experience.