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