Here is the full list of all 34 Thimbleweed Park (EU) trophies - there are 17 bronze, 11 silver, 5 gold and 1 platinum.
Collect all trophies.
Don't pick up any specks of dust.
Complete the game in casual mode.
Grow Leonard's plant to superhuman size.
Stay for all the credits.
Complete the game in hard mode.
Get Ransome's bad ending.
Begin Part Nine.
Collect 75 specks of dust.
Begin Part Eight.
Begin Part Seven.
Begin Part Six.
Begin Part Five.
Push the circus mime over.
Get an alive character into the Hotel penthouse.
Navigate to the buried treasure.
Blow up the Mansion.
Begin Part Four.
Catch the killer.
Make everyone cry about their life.
Collect 50 specks of dust.
Use Ransome's Itch Cream.
Listen to 100 Voicemail messages.
Collect 25 specks of dust.
Read 100 books in the library.
Complete Franklin's Flashback.
Visit every floor in the hotel.
Begin Part Three.
Read all the Thimbleweed Nickel newspapers.
Escape from the sewers.
Complete Delores's Flashback.
Complete Ransome's Flashback.
Begin Part Two.
Begin Part One.