Here is the full list of all 50 Way of the Samurai 4 achievements.
Acquired all achievements.
Watched the “Light of Hope” ending.
Played through to the ending.
Acquired 10,000 samurai points.
Acquired all titles.
Strengthened own weapon for the first time.
Melted 100 weapons total.
Forged an original weapon.
Created a new fighting style.
Enlisted a new disciple for the first time.
Defeated a dojo challenger.
Mastered the Tokyu fighting style.
Mastered a new move for the first time.
Mastered 100 moves total.
Acquired 9,999 skill points.
Acquired 100 different weapons.
Acquired 50 styles, not including My Style.
Learned all moves associated with the high-ready position.
Learned all moves associated with the mid-ready position.
Learned all moves associated with the low-ready position.
Learned all moves associated with the one-handed ready position.
Learned all moves associated with the side ready position.
Learned all moves associated with the spear style.
Learned all moves associated with hand-to-hand combat.
Learned all moves associated with the quick-draw style.
Learned all moves associated with the shinobi style.
Learned all moves associated with the dual arms style.
Learned all moves associated with the shinobi dual arms style.
Learned all moves associated with the gun wielding style.
Made a night crawling appointment.
Succeeded in a night crawling mission.
Successfully completed 100 night crawling appointments.
Survived the torture game.
Successfully completed a job mission for the first time.
Successfully completed 100 job missions.
Killed an enemy for the first time.
Unlocked all fashion items.
Caught a fish for the first time.
Caught a total of 100 fish.
Caught the legendary fish.
Completed 100 combo strikes.
Destroyed 10 enemy weapons.
Won 10 times at gambling.
Defeated your character from a previous playthrough.
Ate all the food from restaurants and food vendors.
Successfully completed the final job mission.
Changed Sensei’s destiny.
Changed Dojima’s destiny.
Finished the game in hard mode.
Finished the game in harakiri mode.