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 the adventure a second time.
Completed game in Speedrun mode.
Defeated Daimon in his true form.
Defeated Daimon for the first time.
Visited 150 locations.
Defeated the Dark Bishop in Bitterblack Isle.
Defeated Death in Bitterblack Isle.
Defeated the Gazer in Bitterblack Isle.
Defeated 3,000 enemies.
Defeated a drake, wyrm, and wyvern.
Defeated a hydra or archydra.
Enlisted a large number of pawns.
Completed 50 notice board quests.
Reached LV 200.
Reached LV 100.
Defeated the Ur-Dragon.
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.
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.
Entered the duke's manse.
Received the duke's commendation.
Gave 50 presents.
Obtained 350 pieces total of weapons and armor.
Visited 100 locations.
Entered the Soulflayer Canyon.
Attended an audience with the duke.
Entered the southwestern caves.
Raised a person's affinity to the maximum.
Obtained a forgery.
Earned a total of 10,000,000G.
Dressed a male party member in women's clothing.
Entered the ancient quarry.
Directly enlisted a pawn to your party.
Helped Madeleine open her shop.
Acted as a reliable travel companion.
Visited 50 locations.
Used a Wakestone to restore the dead to life.
Received a writ from the castle.
Learned all the skills of a single vocation.
Combined two materials to make an item.
Changed your main pawn's vocation.
Changed your vocation.
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.