Here is the full list of all 51 Way of the Samurai 3 (EU) trophies - there are 42 bronze, 5 silver, 3 gold and 1 platinum.
Acquired all the Trophies.
Mastered all skills of Spear Stance.
Mastered all skills of Ninja Stance.
Mastered all skills of Single Stance.
Mastered all skills of Draw Stance.
Mastered all skills of Side Stance.
Mastered all skills of Lower Stance.
Mastered all skills of Upper Stance.
Mastered all skills of Middle Stance.
Mastered all skills for thirty weapons.
Completed and discovered all Endings.
Cleared the game in Instant Kill difficulty.
Achieved 100 Chain Kills.
Defeated an enemy with Blunt Attack using a weapon with zero durability.
Killed an enemy using a weapon with zero durability.
Obtained 20 titles.
Cleared the game in Hard difficulty.
Cleared the game in Easy difficulty.
Cleared game with more than 120% Samurai Rating.
Learned a total of 100 skills.
Mastered all skills of Bare Hands Stance.
Mastered all skills of Ninja Dual Sword Stance.
Completed and discovered the True Ending.
Completed and discovered 5 Endings.
Mastered all skills of Dual Sword Stance.
Obtained 5 titles.
Learned a total of 10 skills.
Defeated Shuzen Fujimori.
Created a weapon.
Obtained 50 different weapons.
Completed 50 jobs successfully.
Mastered all skills for a weapon.
Achieved 10 Chain Kills.
Broke an opponent's weapon.
Defeated Sensei at the Dojo.
Played more than 10 hours.
Total Samurai Points exceeded 10000 points.
Obtained all Outfits.
Obtained all Heads.
Total Samurai Points exceeded 2000 points.
Completed the game.
Cleared the game in Normal difficulty.
Obtained a partner.
Forged a weapon for the first time.
Obtained 10 different weapons.
Completed a job successfully.
Obtained an extra Sword Safe.
Total Samurai Points exceeded 200 points.
Learned a skill for the first time.
Fist time killing an enemy.
Defeated an opponent with a Blunt Attack.