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