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.
Find an Oversized Papier-Mâché Hamlet Head
Control Reality Using Ophelia's Thoughts
Cheat at Solitaire
Describe Hamlet's Situation in Rhyming Verse
Choose To Play As Hamlet
Choose To Play As Ophelia
Explore a Sunken Ship as a Ghost
Invent Second Person Pronoun-Paradoxial Auto-Dramatic Irony
Choose To Play As King Hamlet, Sr.
Inhabit the Author's Consciousness
You Just Wanted to Make Out Some More
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
Find a Flaw in Hamlet's Book
Observe a Sandwich Overdose
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