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 the adventure a second time.
Completed 50 notice board quests.
Defeated 3,000 enemies.
Visited 150 locations.
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.
Raised a person's affinity to the maximum.
Directly enlisted a pawn to your party.
Put an end to all things.
Dealt the blow of deliverance.
Soar unto a new world.
Took refuge in an illusion.
Escaped the yoke of eternity.
Defeated the Ur-Dragon.
Earned a total of 10,000,000G.
Defeated a drake, wyrm, and wyvern.
Defeated a hydra or archydra.
Used a Wakestone to restore the dead to life.
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.
Entered the Soulflayer Canyon.
Visited 100 locations.
Entered the duke's manse.
Completed the urgent mission.
Received the duke's commendation.
Changed your vocation.
Entered the ancient quarry.
Changed your main pawn's vocation.
Attended an audience with the duke.
Helped Madeleine open her shop.
Dressed a male party member in women's clothing.
Entered the southwestern caves.
Acted as a reliable travel companion.
Visited 50 locations.
Obtained a forgery.
Received a writ from the castle.
Entered Gran Soren.
Entered the azure caverns.
Combined two materials to make an item.
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.