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