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