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