Here is the full list of all 51 Middle-earth: Shadow of Mordor trophies - there are 35 bronze, 14 silver, 1 gold and 1 platinum.
One has walked in Mordor.
Make an uruk yours.
Get Ratbag promoted to Warchief.
Discover some of the Wraith's past.
Destroy the Monument Gate and topple the statue of Sauron.
Kill The Hammer.
Save Lithariel's life.
Lift Lady Marwen's curse.
Kill the Great White Graug.
Kill The Tower.
Kill The Black Hand.
Witness the creation of The Rings of Power.
Use Strike From Above while at least 60 feet above your target.
Perform an Execution on a flaming Berserker.
Use the Detonate ability to burn 50 uruks.
Issue a Death Threat, and then successfully kill the target.
Brand a Captain while in combat.
Help a Captain survive a Recruitment Power Struggle, and then kill him and all his new recruits.
Poison a Captain at his own Feast.
Brand 5 Bodyguards of a Warchief, turning them against him in combat.
Capitalize on a Warchief's Fear.
Eliminate the bodyguards of two Warchiefs, then draw them out and kill them.
Brand all 5 Warchiefs.
Kill all 5 Warchiefs before any uruk take their place.
After an uruk kills you to become a Captain, help him become a Warchief, then kill him.
Start a Riot by commanding a Warchief to attack another Warchief.
Liberate 20 slaves in 300 seconds while riding a caragor.
Free 5 caragors from cages.
Attract caragors with bait 5 times.
Make 20 uruks flee by dropping Morgai Fly nests.
Complete a Sword Mission and begin growing the legend of Urfael.
Complete all Urfael Legend Missions.
Complete a Dagger Mission and begin growing the legend of Acharn.
Complete all Acharn Legend Missions.
Complete a Bow Mission and begin growing the legend of Azkâr.
Complete all Azkâr Legend Missions.
Unlock 3 Sword Rune slots.
Unlock 4 Dagger Rune slots.
Unlock 2 Bow Rune slots.
Acquire a level 25 Rune.
Collect 50% of the Ithildin.
Collect 100% of the Ithildin.
Collect 25% of the Artifacts.
Collect 100% of the Artifacts and listen to their memories.
Successfully complete a Survivalist Challenge.
Complete all Survivalist Challenges.
Complete an Outcast Rescue Mission.
Complete all Outcast Rescue Missions.
Successfully complete 4 Hunting Challenges.
Complete all Hunting Challenges.
Activate all Forge Towers.