Here is the full list of all 41 Danganronpa V3: Killing Harmony (EU) trophies - there are 26 bronze, 10 silver, 4 gold and 1 platinum.
Acquire all trophies.
Complete the Ultimate Talent Development Plan with every student, regardless of rarity.
Slap around objects at least 1,000 times.
Reach the true ending in "Love Across the Universe."
Unlock the entire gallery.
Achieve the maximum level.
Take every alternate route in a Nonstop Debate.
Find every hidden Monokuma.
Collect every present.
Achieve the highest level bond with everyone.
Defeat the hidden boss in Despair Dungeon: Monokuma's Test.
Obtain all the Ultimate cards.
Clear Despair Dungeon: Monokuma's Test.
Clear the final exam of the Ultimate Talent Development Plan.
Defeat the first boss of Despair Dungeon: Monokuma's Test.
Complete the Ultimate Talent Development Plan with one student.
Achieved an S-Rank on Mean difficulty in TREASURE HUNTER! MONOLITH.
Take an alternate route during the Nonstop Debate.
Achieved an S-Rank on Mean difficulty in OUTLAW RUN.
Achieved an S-Rank on Mean difficulty in SALMON FISHING.
Clear Chapter 6.
Attend the final class trial.
Clear Chapter 5.
Shoot down over 500 white noise.
Learn the truth of the outside world.
Clear Chapter 4.
Enter the Virtual World.
Achieve the highest level bond with someone.
Use the Love Key to spend the night with a student.
Own more than 10,000 casino coins.
Clear Chapter 3.
Conduct the seance.
Get all 7s on the MonoMono Slots.
Clear Chapter 2.
Find a hidden Monokuma.
Unlock new areas inside the academy.
Clear Chapter 1.
Present false evidence.
Perform a V-Refute, V-Agree, and V-Lie.
Refute an argument.
Clear the prologue.