Here is the full list of all 38 Salt and Sanctuary trophies - there are 20 bronze, 13 silver, 4 gold and 1 platinum.
Achieve all possible trophies.
Aid an unraveling sorceror.
Defeat the Unspeakable Deep.
Take an oath to the Order of the Betrayer.
Achieve the maximum devotion level in your creed.
Take an oath to The Iron Ones.
Take an oath to the gods of Fire and Sky.
Take an oath to The House of Splendor.
Take an oath to The Stone Roots.
Take an oath to Devara's Light.
Escape the island.
Become the new lord of the island.
Defeat the Nameless God.
Defeat Kraekan Dragon Skourzh.
Defeat the Unskinned and the Architect.
Aid a questing knight.
Defeat Carsejaw the Cruel.
Achieve the maximum upgrade level of a weapon.
Defeat the Witch of the Lake.
Defeat the Coveted.
Defeat the Bloodless Prince.
Bear all possible brands.
Defeat the Dried King.
Defeat the Third Lamb.
Defeat the Untouched Inquisitor.
Aid a despondent thief.
Defeat that Stench Most Foul.
Defeat the Disemboweled Husk.
Defeat the Tree of Men.
Defeat the Kraekan Wyrm.
Discover your first brand.
Defeat the False Jester.
Defeat the Kraekan Cyclops.
Defeat the Mad Alchemist.
Defeat the Queen of Smiles.
Defeat the Sodden Knight.
Claim your first sanctuary.
Take an oath to The Three.