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