Here is the full list of all 40 Archvale achievements.
Store over 10,000 gold in the bank.
Craft 30 items.
Defeat the Old King.
Reconstruct the gateway to Archvale.
Obtain the best potion recipe.
Equip a shark cap and mermaid tail.
Obtain Avarn's Sword.
Collect all healing flasks.
Collect all Heart Containers.
Defeat the Banished Executioner.
Assemble the Arch Lexicon.
Collect every badge.
Complete every trial.
Cash in 10 treasures.
Defeat the Colossal Skullbot.
Survive the ritual of the Molten Rift.
Defeat the Sunken Queen.
Defeat the Grove's Blight.
Fully upgrade a weapon.
Perform five consecutive dashes without stamina recharging.
Destroy the barrier guarding Tanglegrove.
Complete half of your badge collection.
Defeat the Rotted King.
Defeat the Soul Serpent.
Defeat Frankenslime.
Defeat the Exiled Wizard.
Enter the Twisted Caverns.
Defeat the Fallen Pharaoh.
Defeat 1000 enemies.
Defeat the Queen Duneworm.
Obtain an improved healing recipe.
Own 8 hearts.
Defeat the Ghost Crab.
Restore 10 fountains.
Defeat Mongo.
Die.
Defeat the Great Slime.
Defeat Maxilla.
Complete your first trial.
Find the village of Timberwell.