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