Full list of all 74 Middle-earth: Shadow of Mordor achievements worth 1,680 gamerscore.
The base game contains 51 achievements worth 1,000 Gamerscore, and there are 2 DLC packs containing 23 achievements worth 680 Gamerscore.
Start a Riot by commanding a Warchief to attack another Warchief.
Lift Lady Marwen's curse.
Free 5 caragors from cages.
Brand a Captain while in combat.
Kill the Great White Graug.
Activate all Forge Towers.
Collect 50% of the Ithildin.
Eliminate the bodyguards of two Warchiefs, then draw them out and kill them.
Issue a Death Threat, and then successfully kill the target.
Kill The Hammer.
Complete a Vendetta Mission.
Unlock 4 Dagger Rune slots.
Destroy the Monument Gate and topple the statue of Sauron.
Use Strike From Above while at least 60 feet above your target.
Collect 25% of the Artifacts.
Use the Detonate ability to burn 50 uruks.
Make 20 uruks flee by dropping Morgai Fly nests.
Get Ratbag promoted to Warchief.
Witness the creation of The Rings of Power.
Complete a Sword Mission and begin growing the legend of Urfael.
Unlock 3 Sword Rune slots.
Attract caragors with bait 5 times.
Complete an Outcast Rescue Mission.
Unlock 2 Bow Rune slots.
Complete a Bow Mission and begin growing the legend of Azkâr.
Complete a Dagger Mission and begin growing the legend of Acharn.
Successfully complete a Survivalist Challenge.
Discover some of the Wraith's past.
Make an uruk yours.
Brand 5 Bodyguards of a Warchief, turning them against him in combat.
Complete all Azkâr Legend Missions.
Complete all Acharn Legend Missions.
Poison a Captain at his own Feast.
Successfully complete 4 Hunting Challenges.
Brand all 5 Warchiefs.
Liberate 30 slaves in 180 seconds while riding a caragor.
SECRET
Collect 100% of the Ithildin.
Complete all Survivalist Challenges.
Complete all Hunting Challenges.
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.
Help a Captain survive a Recruitment Power Struggle, and then kill him and all his new recruits.
Complete all Urfael Legend Missions.
After an uruk kills you to become a Captain, help him become a Warchief, then kill him.
Perform an Execution on a flaming Berserker.
Capitalize on a Warchief's Fear.
Begin a new hunt with Torvin.
Defeat all the Beastmaster Warchiefs.
Complete 25 Caragath Stealth Kills.
Use a Wretched Graug's Projectile Vomit on an Uruk Captain or Warchief.
Kill a Graug by dispatching your Ghûls on him.
Bait 10 Ghûl mounds.
Have 20 Branded Ghûls at one time.
Kill a Caragath with an Execution.
Activate the Blazing Steed.
Eat a captain with a Wretched Graug.
Catch a Ghûl Matron on fire during the Lord of the Hunt campaign.
Have a dominated Caragath, Wretched Graug and Spitter Ghûl simultaneously.
Complete all objectives in the Test of the Wild.
The One Ring has returned to it's Maker.
Challenge the Dark Lord in Mordor.
Shadow Brand 20 Uruks.
Wraith Flash Dominate 50 Uruks.
Maximize the power of the Ring by completing all of the One Ring missions.
Stealth Brand a Captain.
Brand 20 Uruks in 60 seconds.
Build all the Forge Towers in Udun.
Get a Level 30 Rune in Test of the Ring.
Complete all objectives in the Test of The Ring.