Here is the full list of all 53 The Last Faith achievements.
Defeat the Old Wymond.
Accept the Throne.
Be consumed by the Cosmic Voice.
Defeat Caterina and Annabella.
Deliver all the Unborn of the Midnight Aristocracy to the Woman in Ink.
Raise any stat to level 50.
Defeat Lord Laddak.
Acquire all Healing Holsters.
Acquire all firearms.
Defeat Leena.
Defeat the Cold One Beast.
Finish Lucyl’s quest.
Finish Aldrich's quest.
Defeat Lisa.
Defeat Manfredd the Accursed.
Acquire the Celestial Larva.
Perform 30 execution moves.
Defeat the second Starborn Nighthunter.
Defeat the Voracious Terror.
Use the Stigma of Transcendence.
Defeat the Burnt Apostate.
Acquire the Propulsion Boots.
Defeat Yegor and Leena.
Finish Helenya’s quest.
Defeat the first Starborn Nighthunter.
Acquire the Nighthunter’s Grappling Claw.
Defeat Edwyn the Shadowscourge Horror.
Acquire the Technological Lens.
Spend over 50,000 Nycrux.
Acquire the Gravitational Ring.
Defeat Dr. R. Hermann.
Defeat the Winged Pale Laments.
Kill 100 enemies.
Defeat the Giant Patron.
Defeat the Starlight Beast of Illygarth.
Defeat the Harbinger of Nightmare.
Defeat Nyxaroth the Eldritch Wight.
Defeat Medeya.
Acquire every Sepolcro.
Deliver all of the blueprints to Mariano.
Acquire all Federal Era Belts.
Finish Madelyne and Theodora's quest.
Finish Lady Annika’s quest.
Deliver all the dried livers to Lady Dorothea.
Acquire all primary weapons.
Acquire all spells.
Upgrade any primary weapon to its maximum level.
Upgrade any secondary weapon to its maximum level.
Acquire both of Esk’s eyes.
Find all notes.
Parry 50 incoming attacks.
Reach the true ending.
Unlocked all achievements for The Last Faith.