Here is the full list of all 50 Hunted: The Demon's Forge achievements worth 1,000 gamerscore.
Complete the tutorial
Complete Chapter 1
Complete Chapter 2
Complete Chapter 3
Complete Chapter 4
Complete Chapter 5
Complete Chapter 6
Adventure Mode - Finished a game where one player drank the Sleg
Adventure Mode - Finished a game where neither player drank Sleg
Adventure Mode - Defeat all bosses as E'lara
Adventure Mode - Defeat all bosses as Caddoc
Adventure Mode - Collect all possible crystals throughout the game
Equip a Rare, or better, quality weapon in both inventory slots
Obtain an Epic quality weapon
Adventure Mode - Used the Deathstone to communicate with every spirit in the game
Adventure Mode - Find all Dragon Tears in the game
Adventure Mode - Revive your fallen companion 20 times during the game
Adventure Mode - Cooperatively kill 50 levitating enemies
Adventure Mode - Cooperatively kill 50 frozen enemies
Shatter the shields of 50 enemies
Kill at least 3 enemies with one explosion
Kill 20 enemies using explosive barrels
Adventure Mode - Perform a Spell Link with your companion 20 times during the game
Adventure Mode - Battle Charge your companion 50 times during the game
Create your own Crucible level
Unlock 1st piece of Crucible content
Unlock 50% of Crucible content
Unlock all Crucible content
Complete a 25 room map in Crucible
Adventure Mode - Free all bound prisoners throughout the game
Kill a fleeing Wargar in the town of Dyfed
Kill 20 Wargar before the crane platform gets to the bottom in the Dungeons of Dyfed
Escape the Collapsing Aqueduct without taking any damage
Trick the Minotaur into destroying all the pillars in the Arches of Fire section in Llyr
Kill an Eye of Annuvin before it can summon reinforcements on the Road to Kala Moor
Kill 15 enemies with the Forest flechette gun on the Road to Kala Moor
Trick a blind dragon into shooting down the weak tower in the depths of Kala Moor
Amass 100,000 gold
As E'lara, defeat the Infected at the end of Chapter 1
As Caddoc, defeat the Infected at the end of Chapter 1
As E'lara, squash the spider god while holding Caddoc’s hand in Chapter 2
As Caddoc, conquer your fear as well as the spider god in Chapter 2
Kill the assassin at the docks in Chapter 3 as E'lara
Kill the assassin at the docks in Chapter 3 as Caddoc
As E'lara, send the demon in the library back to hell at the end of Chapter 4
As Caddoc, send the demon in the library back to hell at the end of Chapter 4
As E'lara, kill the Blind Dragon at the conclusion of Chapter 5
As Caddoc, Put down the Blind Dragon at the conclusion of Chapter 5
Defeat Annuvin as E'lara
Defeat Annuvin as Caddoc