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