Here is the full list of all 51 Dragon's Dogma trophies - there are 42 bronze, 5 silver, 3 gold and 1 platinum.
Collected all other Dragon's Dogma trophies.
Completed all pre-planned, non-notice board quests.
Completed the adventure a second time.
Took refuge in an illusion.
Soar unto a new world.
Obtained 350 pieces total of weapons and armor.
Enlisted a large number of pawns.
Defeated a hydra or archydra.
Earned a total of 10,000,000G.
Defeated the Ur-Dragon.
Defeated a drake, wyrm, and wyvern.
Obtained the almighty power of sovereignty.
Gave 50 presents.
Defeated 3,000 enemies.
Completed 50 notice board quests.
Put an end to all things.
Dealt the blow of deliverance.
Escaped the yoke of eternity.
Learned all the skills of a single vocation.
Visited 150 locations.
Defeated an evil eye.
Peered into the very depths of the world.
Strengthened equipment in wyrmfire.
Accepted the Godsbane blade.
Entered the duke's manse.
Completed the urgent mission.
Received the duke's commendation.
Obtained a forgery.
Attended an audience with the duke.
Helped Madeleine open her shop.
Entered the Soulflayer Canyon.
Visited 100 locations.
Raised a person's affinity to the maximum.
Acted as a reliable travel companion.
Entered the southwestern caves.
Received a writ from the castle.
Entered the ancient quarry.
Used a Wakestone to restore the dead to life.
Visited 50 locations.
Changed your main pawn's vocation.
Changed your vocation.
Entered Gran Soren.
Directly enlisted a pawn to your party.
Enlisted a pawn to your party from beyond the rift.
Earned the approval of the Enlistment Corps.
Entered the azure caverns.
Dressed a male party member in women's clothing.
Summoned your own pawn.
Combined two materials to make an item.
Departed from Cassardis.
Completed the prologue.