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