Full list of all 33 Thimbleweed Park achievements worth 1,000 gamerscore. It takes around 8-10 hours to unlock all of the achievements on Xbox One.
Didn't pick up any specks of dust.
Completed the game in casual mode.
Stayed for all the credits.
Completed the game in hard mode.
Got Ransome's bad ending.
Part Nine: The Deleting.
Blew up the Mansion.
Part Eight: The Escape.
Part Seven: The Madness.
Collected 75 specks of dust.
Grew Leonard's plant to superhuman size.
Part Six: The Factory.
Part Five: The Reading.
Got an alive character into the Hotel penthouse.
Part Four: The Will.
Caught the killer.
Collected 50 specks of dust.
Made everyone cry about their life.
Used Ransome's Itch Cream.
Collected 25 specks of dust.
Navigated to the buried treasure.
Completed Franklin's Flashback.
Visited every floor in the hotel.
Listened to 100 Voicemail messages.
Part Three: The Arrest.
Read all the Thimbleweed Nickel newspapers.
Completed Delores's Flashback.
Read 100 books in the library.
Escaped from the sewers.
Completed Ransome's Flashback.
Pushed the circus mime over.
Part Two: The Body
Part One: The Meeting.