Full list of all 38 Dark Souls II achievements worth 1,000 gamerscore. It takes around 80-100 hours to unlock all of the achievements on Xbox 360.
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Achievements they've won
Achievements they've not won
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Learn all miracles
Learn all pyromancies
Learn all sorceries
Learn all hexes
Defeat Vendrick
Light all flames on the map in Majula
Learn all gestures
Inherit Captain Drummond's equipment
Inherit equipment from Lucatiel of Mirrah
See the ending
Inherit Benhart of Jugo's equipment
Inherit Steady Hand McDuff's equipment
Discover an ancient covenant
Acquire Ashen Mist Heart
Acquire the King's Ring
Discover the abysmal covenant
Defeat Looking Glass Knight
Light the primal bonfire in the Black Gulch
Light the primal bonfire in Brightstone Cove Tseldora
Reinforce a weapon to its limit
Increase the population of Majula
Discover the covenant of the bloodthirsty
Light the primal bonfire in the Iron Keep
Discover the covenant of rodents
Discover the covenant of the fittest
Inherit Laddersmith Gilligan's equipment
Max-out devotion to covenant
Discover a most brilliant covenant
Discover the clangorous covenant
Inherit equipment from the head of Vengarl
Light the primal bonfire in Sinner's Rise
Give Rosabeth of Melfia something to wear
Discover the covenant of the protectors
Defeat the Last Giant
Discover the covenant of the meek
Die for the first time
Reclaim flesh and set out as an Undead