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