Here is the full list of all 35 Bendy and the Dark Revival achievements.
Complete The Game on Hard
Defeat 25 Enemies With Shock Pipe
Spend 500 Slugs
Seek Out The Writings of Joey Drew
Pick Up All Audio Logs
Collect All Memories
Complete The Game Without Dying
Complete The Game on Normal
You Should Really Just Relax
A Very Random Occurance
Take Some Time For Yourself
Show Too Much Dedication
Complete Chapter Five
Complete The Game on Easy
Complete the Game While Surviving The Slicer
Complete The Main Story
Survive 25 Ink Demon Attacks
Banish 25 Enemies
Reveal A Very Old Friend
Maximize Your Dark Potential
Create The Ultimate Weapon
Locate The Toyman's Secret
Read All Memos
Complete Chapter Four
Be A First Time Party Pooper
Collect 100 Pieces of Food
Complete Chapter Two
Complete Chapter Three
Defeat the Crawling King
Defeat the Ruler of the Lower Realm
Find Your First Weapon
Complete Chapter One
Clean Up The Exhibit
Meet Up With An Old Friend
Obtain The Banish Power