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