Here is the full list of all 33 Thimbleweed Park achievements.
Collected 75 specks of dust.
Collect 50 specks of dust.
Complete the game in casual mode.
Collect 25 specks of dust.
Stayed for all the credits.
Didn't pick up any specks of dust.
Complete the game in hard mode.
Got Ransome's bad ending.
Part Nine: The Deleting.
Part Eight: The Escape.
Part Seven: The Madness.
Part Six: The Factory.
Begin Part Five.
Grew Leonard's plant to superhuman size.
Get an alive character into the Hotel penthouse.
Begin Part Four.
Catch the killer.
Make everyone cry about their life.
Blew up the Mansion.
Navigated to the buried treasure.
Used Ransome's Itch Cream.
Complete Franklin's Flashback.
Visited every floor in the hotel.
Begin Part Three.
Listen to 100 Voicemail messages.
Complete Delores's Flashback.
Escape from the sewers.
Read all the Thimbleweed Nickel newspapers.
Read 100 books in the library.
Pushed the circus mime over.
Complete Ransome's Flashback.
Begin Part Two.
Begin Part One.