Full Gameplay Walkthrough...

Complete the indicated task to unlock the achievement.

Achievement	How to unlock
A New Friend	Complete Chapter 4.
And What Next?	Feed the mouth in the dentist's room.
Beginning of the Nightmare	Complete Chapter 2.
Boom-Stick!	Find the double-barreled shotgun.
Call from a Friend	Answer the phone.
Craftsman	Find all the parts of the old gun and put them together.
Demons Of The James Cooper	Forgive yourself and fight your demons.
Demons?!	Watch the first videotape about demons.
Divine Comedy	Don't forgive yourself and get punished for your sins.
Don't Look Back In Anger	Complete Chapter 7.
End of the Nightmare	Complete Chapter 9.
Fear the Timeloop	Complete the game on the highest difficulty level.
First Time, Huh?	Die for the first time.
Full Pockets	Reach the maximum number of inventory size.
I Don't Need the Loops	Complete the game without dying.
I Need All Of Them	Find all abilities.
Lollipops	Collect all the lollipops and receive a reward for your efforts.
Omniscient	Read all of the files.
Reflections	Listen to Cooper's monologue about the tragedy.
Release from Guilt	Complete Chapter 5.
Reporter	Report all oddities to Rose.
Rescue Mission	Complete Chapter 8.
Seasoned Sheriff	Complete the game on Hardcore mode.
Super Fast	Reach maximum speed using the painkillers.
Sweaty?	Before killing the brute, break all of his armor.
The Admirer	Complete Chapter 6.
The Collector	Find all the extra weapons.
The Exchanger	Trade blood for items five times.
The Explorer	Use all keycards and the bolt cutter.
The Guilt, Lust And Anger	Complete Chapter 3.
The Joke Didn't Land	Kill the clown without receiving any damage.
The Life of Sheriff Cooper	Take part in a show dedicated to yourself.
The Time Loop Begins	Complete Chapter 1.
What Luck!	Trigger a trap but survive.
What Was That?	Use the "Second Life" ability for the first time.
Who Are You?	Try to get outside through the cultists.
You'll Never Learn	Kill the nurse five times.