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