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.
Opened all lockers.
Completely upgraded all weapons.
Killed 2 or more enemies at once using a hanging lamp. (Ch. 9)
Observed all Residual Memories.
Completed the game in Classic Mode.
Avoided unnecessary bloodshed outside City Hall. (Ch. 5)
Opted for a cinematic experience.
Collected all files.
Completely upgraded all abilities.
Collected all of the Mysterious Objects.
Killed 3 enemies using upgraded Smoke Bolts.
Upgraded one of your Warden Crossbow bolts to max level.
Stomped and killed 15 fallen enemies.
Crafted every type of item at least once.
Acquired all standard weapons.
Brought your own equipment to the barbecue this time. (Ch. 14)
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.
Reached the very end of the world.
Your trauma is no more.
Talked to Kidman about all of the photographic slides.
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.
Completed the "The Last Step" side mission.
Used every Coffee Maker at least once.
Survived an ordeal with the help of a new friend.
Shut down a bloody performance.
Upgraded a weapon to Level 3.
Found a potential ally in The Marrow.
Collected 20 files.
Defeated the Guardian outside City Hall.
Killed an enemy using an Ambush.
Stunned an enemy standing in water using a Shock Bolt.
Saw a chilling vision.
Used your first Red Gel.
Completed the "Rogue Signal" side mission.
Killed 60 enemies.
Killed 2 or more enemies at once using oil on the ground.
Killed 30 enemies.
Acquired the Warden Crossbow.
Used your first High-Grade Weapon Parts.
Killed 10 enemies using Sneak Kills.
Crafted something for the first time.
Took the plunge back into STEM.