Here is the full list of all 56 Soul Sacrifice trophies - there are 48 bronze, 5 silver, 2 gold and 1 platinum.
Killed archfiend in single player mode with 1 Offering.
Read through all Magusar chapters and staff credits.
Achieve the rank of “Legendary Sorcerer” 50 times.
Defeated 20 archfiends.
Acquired 1000 Offerings.
Acquired 1000 soul/life essences.
Fulfilled all pacts for Envy.
Repaired 50 Offerings.
Fulfilled all pacts for Reparation.
Fulfilled all pacts for Only Memories Remain.
Fulfilled all pacts for Beginning of the End.
Fulfilled all pacts for The Knight of Vengeance.
Fulfilled all pacts for Ballad of a Werewolf.
Fulfilled all pacts for Fading Humanity.
Acquired 500 Offerings.
Acquired 50 Offerings by fusing.
Fulfilled all pacts for Desire.
Fulfilled all pacts for Innocence.
Defeated 10 archfiends.
Earn the "Unscathed Kill" award in an Avalon pact.
Fulfilled all pacts for Child of a Monster.
Score 450 points or more in one pact.
Fulfilled all pacts for The Wicked Sorcerer.
Fulfilled all pacts for Destinies Past.
Life level or magic level reached 20.
Fulfilled all pacts for Several Years Later.
Relived 20 pacts in multiplayer.
Unleashed 4 spells with no offerings equipped in one pact.
Acquired 100 Offerings.
Acquired one selectable raiment.
Relived a pact in multiplayer.
Acquired 100 soul/life essences.
Fused Offerings.
Fulfilled all pacts for The Sorcerer's Ordeal.
Used a Black Rite.
Learned a new Black Rite.
Fulfilled pacts of Chapter I of The Sorcerer's Ordeal.
Acquired all trophies.
Fulfilled all pacts for Atonement.
Fulfilled all pacts for Pride.
Fulfilled all pacts for Judgment.
Fulfilled all pacts for Remorse.
Fulfilled all pacts for Penitence.
Fulfilled all pacts for Recursion.
Completed all Avalon Pacts.
Held 30 of one Offering.
Acquired 60 selectable raiments.
Learned 5 Black Rites.
Inflict 5 ailments on an archfiend.
Teased Librom in 3 different ways.
Opened all pages of Librom.
Started pact with 6 identical Offerings.
Used a Chest of Fortune in pact.
Relived 100 pacts in multiplayer.
Visited many places on pacts.
Life level or magic level reached 99.