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