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