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