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