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