Here is the full list of all 47 Castlevania: Lords of Shadow Ultimate Edition achievements.
Finish all levels in Knight difficulty
Finish all levels in Paladin difficulty
Get 110% completion rate in all levels
Complete all the trials for Chapter XIV
Complete all the trials
Buy all the extra artwork
Complete all the trials for Chapter XIII
Complete all the trials for Chapter XII
Gather all the 30 Life gems
Gather all hidden magic gems
Gather all the 30 Light gems
Gather all the 30 Shadow gems
Find all the secret Brotherhood arks
Buy all combos
Complete all the trials for Chapter XI
Finish all levels in Warrior difficulty
Finish all levels in Esquire difficulty
Defeat the Forgotten One
Open portal to dimensional prison
Gather all the fingers of Frankenstein
Defeat Satan and save the world
Acquire the power of the third Dark Lord
Complete all the trials for Chapter X
Vanquish the Gravedigger
Complete all the trials for Chapter IX
Persuade Baba Yaga to open a portal to the Necromancer area
Acquire 100000 experience points
Complete all the trials for Chapter VIII
Acquire the power of the second Dark Lord
Complete all the trials for Chapter VII
Survive the encounter with Laura
Complete all the trials for Chapter VI
Leave the Refectory with the Butcher's key
Complete all the trials for Chapter V
Gain access to the Vampire Castle
Complete all the trials for Chapter IV
Kill the Crow Witch
Complete all the trials for Chapter II
Complete all the trials for Chapter III
Complete all the trials for Chapter I
Buy 15 combos
Acquire the power of the first Dark Lord
Acquire 20000 experience points
Get the Dark Gauntlet
Defeat the Ice Titan
Acquire 1000 experience points
Buy a combo