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