Here is the full list of all 39 There Is No Light: Enhanced Edition achievements.
Spiral is key to everything
Dessert for Samedi
Collect all spider toys
Collect all pages of the bestiary
Get the Bestiary
Get through a karma door
Get a karma medkit
Defeat the traitor
Defeat Champion Gabriel
Defeat Champion Uriel
Defeat Champion Raphael
Learn all the skills
Defeat Fallen Champion
Defeat Homunculus, Child of Memories
Defeat Superbia
Defeat Skoll and Hati
Defeat Behemoth
Defeat Sabnock
Defeat the aircraft Captain
Defeat Corelia
Defeat Tainted
Defeat Son of the King of the Flies
Defeat Avarice
Defeat Mendacium
Defeat Nameless
Defeat Alpha and Omega
Return the knife
Find the wooden sword
Find the dress
Find the ring
Return the medallion
Defeat another disciple
Find a scalpel
The Father's(?) chambers
Remembering the old days at the bar
Get into bed
Get the most positive karma
Throw an enemy into pitfall
Beat the game in new game plus mode