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