Here is the full list of all 59 Dragon's Dogma: Dark Arisen achievements. It takes around 80-100 hours to unlock all of the achievements on Windows.
Completed game in Speedrun mode.
Completed the adventure a second time.
Reached LV 200.
Defeated Daimon in his true form.
Defeated Death in Bitterblack Isle.
Defeated a drake, wyrm, and wyvern.
Obtained the almighty power of sovereignty.
Defeated Daimon for the first time.
Defeated the Dark Bishop in Bitterblack Isle.
Defeated the Gazer in Bitterblack Isle.
Reached LV 100.
Obtained 350 pieces total of weapons and armor.
Earned a total of 10,000,000G.
Completed game in Hard Mode.
Put an end to all things.
Completed all pre-planned, non-notice board quests.
Dealt the blow of deliverance.
Soar unto a new world.
Took refuge in an illusion.
Escaped the yoke of eternity.
Defeated the Ur-Dragon.
Defeated an evil eye.
Peered into the very depths of the world.
Defeated a hydra or archydra.
Accepted the Godsbane blade.
Strengthened equipment in wyrmfire.
Completed the urgent mission.
Visited 150 locations.
Entered the duke's manse.
Received the duke's commendation.
Completed 50 notice board quests.
Defeated 3,000 enemies.
Entered the Soulflayer Canyon.
Helped Madeleine open her shop.
Raised a person's affinity to the maximum.
Attended an audience with the duke.
Gave 50 presents.
Learned all the skills of a single vocation.
Acted as a reliable travel companion.
Visited 100 locations.
Entered the southwestern caves.
Enlisted a large number of pawns.
Entered the ancient quarry.
Obtained a forgery.
Dressed a male party member in women's clothing.
Changed your vocation.
Used a Wakestone to restore the dead to life.
Received a writ from the castle.
Changed your main pawn's vocation.
Visited 50 locations.
Entered Gran Soren.
Earned the approval of the Enlistment Corps.
Directly enlisted a pawn to your party.
Entered the azure caverns.
Enlisted a pawn to your party from beyond the rift.
Summoned your own pawn.
Combined two materials to make an item.
Departed from Cassardis.
Completed the prologue.