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