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