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