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