Here is the full list of all 50 Icewind Dale: Enhanced Edition achievements.
Complete the game on the Heart of Fury difficulty setting.
Complete the game on the Story Mode difficulty setting.
Complete the game with only a single party member.
Sang to the Sea Spirit Elisia.
Memorized Malavon's Rage.
Killed Yxunomei, the Marilith demoness.
Reduce Armor Class to -15 or lower.
Reach level 30 with a Cleric, Druid, or Shaman.
Obtain a Lore skill of 100 or more.
Acquired the Singing Blade of Aihonen.
Become a Fallen Paladin or a Fallen Ranger.
Reach level 30 in three classes with the same character.
Reach level 30 in two classes with the same character.
Reach level 30 with a Thief or Bard.
Reach level 30 with a Mage or Sorcerer.
Have six party members who are evil-aligned.
Have six party members who are neutral-aligned.
Have six party members who are good-aligned.
Completed Icewind Dale.
Killed Belhifet.
Increase an attribute score to 25.
Killed Terikan, the Lich.
Killed Icasaracht, the White Dragon matriarch.
Killed Joril, the leader of the Frost Giants.
Completed Heart of Winter.
Visited the ruined castle in the Anauroch desert.
Completed Trials of the Luremaster.
Freed all slaves in the Wyrm's Tooth glacier.
Turned Malavon's Iron Golems against him.
Visited the Sea of Moving Ice.
Restored the Arboretum to its former glory.
Acquired the Black Swan Armor.
Acquired the Restored Blade of Aihonen.
Acquired the infernal Vexed Armor.
Assisted the dwarven smith Tiernon to forge an ice weapon.
Found Pale Justice, the Holy Avenger sword.
Reach level 30 with a Fighter, Ranger, Paladin, Monk, or Barbarian.
Visited Gloomfrost.
Revisited Easthaven.
Visited the Burial Isle.
Visited Dorn's Deep.
Visited Wyrm's Tooth Glacier.
Visited Dragon's Eye.
Visited the Severed Hand.
Brought a rose of ice to the bard, Murdaugh.
Visited Kuldahar.
Killed 1,000 creatures.
Discovered the true identity of the Lonelywood werewolf.
Reach 150 Hit Points.
Obtain Grand Master weapon proficiency level.