Here is the full list of all 33 To Be or Not To Be achievements. It takes around 4-5 hours to unlock all of the achievements on Windows.
Explore a Sunken Ship as a Ghost
Invent Second Person Pronoun-Paradoxial Auto-Dramatic Irony
Choose To Play As King Hamlet, Sr.
Choose To Play As Ophelia
Inhabit the Author's Consciousness
You Just Wanted to Make Out Some More
Find an Oversized Papier-Mâché Hamlet Head
Meet Yourself Through Time Travel
Out-Crazy Laertes
Read the Book Within A Book
Break Three People's Necks
Discover a Delicious Recipe for Stew
Lose a Rap Battle Against a Gravedigger
Cheat at Solitaire
Find a Flaw in Hamlet's Book
Observe a Sandwich Overdose
Control Reality Using Ophelia's Thoughts
Train Your Skills Using the Power of Montage
Experience the Most Awkward Hug Ever
Murder That Guy Polonius for No Real Reason
Party on a Boat
Beat Queen Gertrude at Chess
Get an ENTIRE Court to Read an Incriminating Letter
Score a Point Through Your Pedantry
Commit Mail Fraud
Push Two People in a Row Down Stairs
Be Polite
Attempt to Puppeteer the Fate of Others
Be the Worst Possible Chess Player
Kill Hamlet by Muscle Memory
Blatantly Lie About Your Fencing Skills
Describe Hamlet's Situation in Rhyming Verse
Choose To Play As Hamlet