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