Here is the full list of all 50 Samurai Warriors: Chronicles 3 trophies - there are 40 bronze, 6 silver, 3 gold and 1 platinum.
Use over 100,000 gold in the castle town.
Use over 100,000 points earned from Challenge Mode.
Unlock 50% of all music tracks in the Vault.
Receive a Challenge Mode reward for the first time.
Rack up 1000 K.O.s in a single battle.
Invest in something for the first time.
Claim victory in a battle.
Achieve a 1000-hit combo in a single battle.
Create a new character.
Obtain all trophies.
See the ending for "Siege of Ōsaka Castle."
See the ending for "Ieyasu's Rebellion."
See the ending for "Hisahide's Rebellion."
See the ending for "Battle at Kawanakajima II."
See the ending for "The Defeat of Matsunaga."
See the ending for "Defeat of Toyotomi II."
See the ending for "Battle of Setouchi II."
See the ending for "Ōsaka Castle Under Siege."
See the ending for "Conquest of Edo."
See the ending for "Battle at Mt. Tachibana."
See the ending for "Battle at Ōsaka."
Claim victory in all Story Mode battles.
Complete a stage on the "Nightmare" difficulty level.
Vanquish 1000 enemies using Hyper Attacks in a single battle.
Use War Arts 10 times in a single battle.
Eat 500 rice balls.
Achieve maximum investment level for all areas in the castle town.
Raise the level of any famous officer to max.
Obtain a Death elemental weapon.
Obtain a rare weapon.
Obtain every single weapon in the game.
Attain a total K.O. count (as displayed in the Vault) of 100,000.
Unlock all panels.
Unlock panel 1.
Unlock panel 2.
Unlock panel 3.
Unlock panel 4.
Unlock panel 5.
Unlock panel 6.
Unlock panel 7.
Unlock panel 8.
Complete over 50% of Story Mode objectives (as shown in the Vault).
Complete 100% of Story Mode objectives (as shown in the Vault).
Unlock 50% of all events in the Vault.
Unlock 100% of all events in the Vault.
Unlock 100% of all music tracks in the Vault.
Obtain every equipable item.
Learn every War Art.
Obtain every horse.
Gain Favor of "Trusted" or higher with all officers.