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