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