Here is the full list of all 34 Sekiro: Shadows Die Twice trophies - there are 18 bronze, 11 silver, 4 gold and 1 platinum.
All trophies have been unlocked.
Attained the "Shura" ending
Defeated all bosses
Defeated "Isshin Ashina"
Acquired all skills
Upgraded all Prosthetic Tools to their limit
Attained the "Return" ending
Attained the "Purification" ending
Attained the "Immortal Severance" ending
Defeated "Sword Saint Isshin Ashina"
Upgraded Vitality and Posture to their limit
Defeated "Great Shinobi - Owl" at the Hirata Estate
Defeated the "Demon of Hatred"
Acquired all Prosthetic Tools
Defeated the "Divine Dragon" and obtained the "Divine Dragon's Tears"
Used Lapis Lazuli to upgrade any tool to its limit
Fully upgraded the "Healing Gourd"
Acquired all Ninjutsu Techniques
Used the Mortal Blade to sever the Guardian Ape's undying
Defeated the "Great Colored Carp".
Defeated the "Corrupted Monk"
Traveled to all areas of the game
Defeated the "Great Serpent".
Defeated "Great Shinobi - Owl"
Defeated the "Guardian Ape"
Caught the Folding Screen Monkeys
Defeated "Genichiro Ashina"
Defeated "Lady Butterfly"
Grasped the inner mysteries of any combat style
Encountered the Memorial Mob
Defeated "Gyoubu Masataka Oniwa"
Returned from the dead using "Resurrection" for the first time
Acquired the Shinobi Prosthetic
Received the "Kusabimaru" from Kuro