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