Here is the full list of all 15 Curse of Eternity achievements.
Escape the Shard Keeper
Slay Urlok without taking any damage
Slay Knucklefluk & Dizmal without taking any damage
Slay Sharklaw without taking any damage
Slay Midrhada without taking any damage
Solve the riddles
Roll 1,000 times
Find 40 or more bits of lore
Die 100 times
Solve the scavenger hunt
Max out your health potion
Beat the game without dying
Die by falling into water
Kill 10 consecutive enemies with little health remaining
Beat the game