Here is the full list of all 46 The Lord of the Rings: War in the North achievements worth 1,000 gamerscore.
Complete a playthrough on Heroic difficulty.
Equip all parts of an armor set.
For one character unlock every skill that provides a modification to War Cry, Sanctuary or Evasion.
Amass 25,000 coins.
Unlock every active-cast ability in one character’s skill tree.
Absorb 25,000 total damage during the course of 1 level.
Kill 150 enemies with war machines in a single playthrough.
Defeat Agandaûr without the aid of Beleram.
Complete a playthrough on at least Normal difficulty.
Defeat Sauron's Lieutenant Agandaûr.
Help weather the siege of Nordinbad.
Complete the investigation of the Cult of the Lidless Eye.
Meet a dragon and survive.
Discover 25 secrets in a single playthrough.
Achieve level 20.
Slay Saenathra.
Complete 15 quests in a single playthrough.
Free the elf from his captors in Mirkwood Marsh.
Defeat the Sorceror Wulfrun.
Help destroy the citadel within Mount Gundabad.
Deal 3000 damage with a single ranged strike.
Slay the wild snow trolls.
Achieve at least 1 rank in a tier 3 skill.
Kill 50 enemies with headshots in a single playthrough.
Slay Bargrisar the stone giant.
Kill 4 enemies simultaneously.
Summon Beleram 10 times in a single playthrough.
Kill 600 enemies in a single playthrough.
Speak with Frodo in Rivendell.
Learn of the Ring of Power and the plan for its destruction.
Defeat the Barrow Wight Lord.
Discover what happened to the missing Rangers.
Achieve level 10.
Defeat Agandaûr's lieutenant Tharzog.
Slot an elfstone into an item.
Deal 1500 damage in a single melee strike.
Revive a fallen ally.
Create 15 potions in a single playthrough.
Kill 200 enemies in a single playthrough.
Locate 5 gilded treasure chests in a single playthrough.
Join forces with the sons of Elrond.
Help free the Great Eagle Beleram.
While in Hero Mode, perform a streak of 50 hits.
Perform 3 critical hits within 10 seconds.
Slay one enemy together with 2 other players.
Complete a playthrough on Legendary difficulty.