Here is the full list of all 47 Vigil: The Longest Night achievements.
Complete all skill trees
Collect all furniture
Complete the axe skill tree
Get at least one of every equipment in game (including rings)
Collect all arcane items
Complete the dual weapon skill tree
Reach maximum value of Arcane power
Reach maximum value of Throwing power
Complete the bow skill tree
Get at least one of every weapon in game
Forge 5 weapon/equipment enchanted and reach to +7
Followed Hilda's words to relieve the seal
Give the Cubic Crystals to the Doctor
Help August during his adventure
Help James to find the salt
Complete the Mysterious Trader's request
Complete the sword skill tree
Find the Golden Slime
Pass Sister Holly's test
Distribute the placebos to the Villagers in town
Beg to Drew 5 times
Complete Duran's quest
Wake Daisy's soul inside the Devourer
Defeat Light Devourer
Defeat Dephil
Defeat The North Princess
Complete the survival skill tree
Stop the crazy Doctor
Give Isabella the ball
Defeat the Evil inside the wood
Defeat Uptancos
Find Hamilton's belongings
Collect all 7 lost paintings
Complete Noax's request
Defeat Kelpie, the Lord of Tide
Defeat Lord of the Misty Lake
Save all miners then talk to Edward
Don't shake it anymore!
Buy Buffe's house
Defeat Erupting Flesh Cluster
Help Daisy to get the medicine
Get the Fallen Eyeball from Hilda
Defeat the Ancient Guard once
Help Thurber W. Sungi's investigation
Defeat Brood Mother
Defeat the Craving Terror outside the town
Welcome to the world of Vigil: The Longest Night!