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.
Learn all gestures
Light all flames on the map in Majula
See the ending
Defeat Vendrick
Inherit Captain Drummond's equipment
Inherit Laddersmith Gilligan's equipment
Discover the covenant of the fittest
Discover an ancient covenant
Inherit equipment from the head of Vengarl
Light the primal bonfire in Brightstone Cove Tseldora
Acquire Ashen Mist Heart
Acquire the King's Ring
Reinforce a weapon to its limit
Defeat Looking Glass Knight
Discover the abysmal covenant
Max-out devotion to covenant
Light the primal bonfire in the Black Gulch
Discover the covenant of rodents
Light the primal bonfire in the Iron Keep
Light the primal bonfire in Sinner's Rise
Increase the population of Majula
Give Rosabeth of Melfia something to wear
Inherit Steady Hand McDuff's equipment
Discover the clangorous covenant
Discover a most brilliant covenant
Discover the covenant of the bloodthirsty
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
Earn all achievements
Learn all sorceries
Learn all miracles
Learn all pyromancies
Learn all hexes
Inherit Benhart of Jugo's equipment
Inherit equipment from Lucatiel of Mirrah