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