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