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