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.
Defeated all bosses
Attained the "Return" ending
Attained the "Purification" ending
Attained the "Immortal Severance" ending
Defeated "Sword Saint Isshin Ashina"
Defeated the "Demon of Hatred"
Defeated the "Divine Dragon" and obtained the "Divine Dragon's Tears"
Upgraded all Prosthetic Tools to their limit
Used Lapis Lazuli to upgrade any tool to its limit
Acquired all skills
Defeated the "Great Colored Carp".
Defeated the "Corrupted Monk"
Traveled to all areas of the game
Defeated "Great Shinobi - Owl" at the Hirata Estate
Defeated "Great Shinobi - Owl"
Attained the "Shura" ending
Defeated "Isshin Ashina"
Acquired all Ninjutsu Techniques
Used the Mortal Blade to sever the Guardian Ape's undying
Acquired all Prosthetic Tools
Defeated the "Guardian Ape"
Defeated the "Great Serpent".
Grasped the inner mysteries of any combat style
Caught the Folding Screen Monkeys
Defeated "Lady Butterfly"
Fully upgraded the "Healing Gourd"
Defeated "Genichiro Ashina"
Upgraded Vitality and Posture to their limit
Defeated "Gyoubu Masataka Oniwa"
Returned from the dead using "Resurrection" for the first time
Encountered the Memorial Mob
Acquired the Shinobi Prosthetic
Received the "Kusabimaru" from Kuro