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.
Opted for a cinematic experience.
Completed the game on Casual difficulty or higher.
Completed the game on Survival difficulty or higher.
Did what needed to be done to save your daughter.
Observed all Residual Memories.
Reached the very end of the world.
Killed 3 enemies using upgraded Smoke Bolts.
Your trauma is no more.
Brought your own equipment to the barbecue this time. (Ch. 14)
Upgraded one of your Warden Crossbow bolts to max level.
Made it inside the enemy's stronghold.
Used every Coffee Maker at least once.
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.
Survived an ordeal with the help of a new friend.
Shut down a bloody performance.
Stunned an enemy standing in water using a Shock Bolt.
Killed 60 enemies.
Found a potential ally in The Marrow.
Collected 20 files.
Defeated the Guardian outside City Hall.
Used your first Red Gel.
Upgraded a weapon to Level 3.
Saw a chilling vision.
Completed the "Rogue Signal" side mission.
Killed 30 enemies.
Killed 2 or more enemies at once using oil on the ground.
Used your first High-Grade Weapon Parts.
Killed 10 enemies using Sneak Kills.
Killed an enemy using an Ambush.
Crafted something for the first time.
Acquired the Warden Crossbow.
Took the plunge back into STEM.
Completed the game on Nightmare difficulty or higher.
Completed the game in Classic Mode.
Completed the "The Last Step" side mission.
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.
Talked to Kidman about all of the photographic slides.
Acquired all standard weapons.
Collected all of the Mysterious Objects.
Stomped and killed 15 fallen enemies.
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)