Here is the full list of all 30 The Lord of the Rings: Aragorn's Quest trophies - there are 9 bronze, 15 silver, 5 gold and 1 platinum.
All Trophies Collected
Complete all the side quests
Complete the Shire
Defeat the Witch-king without taking damage
Collect all the Fellowship Tokens
Defeat 2500 Enemies
Collect all lore items
Defeat 250 enemies with Bow
Game complete
Defeat 100 Uruks
Defeat the Mouth of Sauron
Acquire all the upgrades
Complete all the imaginary quests in the woods
Defeat 8 Oliphaunts
Defeat the Witch-king
Defeat the Uruk champion without taking damage
All stalls 100% Complete
Defend the Ent
1000 silver coins acquired
Perform 5000 sword swipes
Defeat 100 Orcs
Defeat the Balrog
Defeat 1000 Enemies
Complete Crow Hunting quest
Complete Button Mushroom quest
Defeat 100 Goblins
Defeat your first Hill-troll
Defeat Black Riders/Nazgûl
5 consecutive Icon Strikes
Perform an Icon Strike