Here is the full list of all 18 Ara Fell: Enhanced Edition achievements.
Have 8 buffs active at once on an ally.
Collect every enchantment recipe.
Reach level 50 with at least one character.
Collect every relic.
Upgrade and augment every skill.
Upgrade every item to tier 4.
Fill all 16 enchantment slots.
Unlock a specialization class for every character.
Unlock every teleport crystal.
Complete every side quest.
Complete every bounty quest.
Deal over 5000 damage to a single target in one hit.
Have 8 debuffs active at once on an enemy.
Break the stone curse.
Defeat a vampire in battle.
Dive for fish or loot 30 times.
Harvest 100 gathering nodes.
Win every battle on Expert difficulty.