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