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.
Meet Yourself Through Time Travel
Murder That Guy Polonius for No Real Reason
Discover a Delicious Recipe for Stew
Get an ENTIRE Court to Read an Incriminating Letter
Lose a Rap Battle Against a Gravedigger
Blatantly Lie About Your Fencing Skills
Inhabit the Author's Consciousness
Attempt to Puppeteer the Fate of Others
Experience the Most Awkward Hug Ever
Observe a Sandwich Overdose
Score a Point Through Your Pedantry
Kill Hamlet by Muscle Memory
Find a Flaw in Hamlet's Book
Party on a Boat
Commit Mail Fraud
Cheat at Solitaire
Describe Hamlet's Situation in Rhyming Verse
Choose To Play As Hamlet
Read the Book Within A Book
Train Your Skills Using the Power of Montage
You Just Wanted to Make Out Some More
Out-Crazy Laertes
Be Polite
Beat Queen Gertrude at Chess
Be the Worst Possible Chess Player
Push Two People in a Row Down Stairs
Break Three People's Necks
Find an Oversized Papier-Mâché Hamlet Head
Control Reality Using Ophelia's Thoughts
Choose To Play As Ophelia