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.
Part Eight: The Escape.
Part Seven: The Madness.
Part Six: The Factory.
Part Five: The Reading.
Got an alive character into the Hotel penthouse.
Part Four: The Will.
Caught the killer.
Blew up the Mansion.
Used Ransome's Itch Cream.
Collected 25 specks of dust.
Completed Franklin's Flashback.
Visited every floor in the hotel.
Part Three: The Arrest.
Escaped from the sewers.
Read all the Thimbleweed Nickel newspapers.
Completed Delores's Flashback.
Completed Ransome's Flashback.
Pushed the circus mime over.
Part Two: The Body
Part One: The Meeting.
Begin Part Nine.
Complete the game in casual mode.
Complete the game in hard mode.
Stay for all the credits.
Read 100 books in the library.
Collect 50 specks of dust.
Listen to 100 Voicemail messages.
Make everyone cry about their life.
Navigate to the buried treasure.
Grow Leonard's plant to superhuman size.
Collect 75 specks of dust.
Get Ransome's bad ending.
Don't pick up any specks of dust.