Full list of all 50 Middle-earth: Shadow of Mordor achievements worth 1,000 gamerscore. It takes around 20-25 hours to unlock all of the achievements on Xbox 360.
Collect 25% of the Artifacts.
Collect 50% of the Ithildin.
Brand 5 Bodyguards of a Warchief, turning them against him in combat.
Complete all Azkâr Legend Missions.
Complete a Bow Mission and begin growing the legend of Azkâr.
Unlock 2 Bow Rune slots.
Destroy the Monument Gate and topple the statue of Sauron.
Complete all Acharn Legend Missions.
Complete a Dagger Mission and begin growing the legend of Acharn.
Unlock 4 Dagger Rune slots.
Use Strike From Above while at least 60 feet above your target.
Make an uruk yours.
Poison a Captain at his own Feast.
Activate all Forge Towers.
Attract caragors with bait 5 times.
Discover some of the Wraith's past.
Make 20 uruks flee by dropping Morgai Fly nests.
Issue a Death Threat, and then successfully kill the target.
Free 5 caragors from cages.
Start a Riot by commanding a Warchief to attack another Warchief.
Successfully complete a Survivalist Challenge.
Successfully complete 4 Hunting Challenges.
Brand all 5 Warchiefs.
Use the Detonate ability to burn 50 uruks.
Liberate 20 slaves in 300 seconds while riding a caragor.
Save Lithariel's life.
Eliminate the bodyguards of two Warchiefs, then draw them out and kill them.
Witness the creation of The Rings of Power.
Brand a Captain while in combat.
Collect 100% of the Ithildin.
Complete all Survivalist Challenges.
Complete all Hunting Challenges.
Complete an Outcast Rescue Mission.
Complete all Outcast Rescue Missions.
Acquire a level 25 Rune.
Kill all 5 Warchiefs before any uruk take their place.
Collect 100% of the Artifacts and listen to their memories.
Get Ratbag promoted to Warchief.
Help a Captain survive a Recruitment Power Struggle, and then kill him and all his new recruits.
Complete all Urfael Legend Missions.
Complete a Sword Mission and begin growing the legend of Urfael.
Unlock 3 Sword Rune slots.
Lift Lady Marwen's curse.
Kill The Black Hand.
Kill the Great White Graug.
After an uruk kills you to become a Captain, help him become a Warchief, then kill him.
Kill The Tower.
Kill The Hammer.
Perform an Execution on a flaming Berserker.
Capitalize on a Warchief's Fear.