Here is the full list of all 34 9 Years of Shadows achievements.
Break the curse.
Upgrade your Vitality to the maximum.
Allow Hibino to complete his mission.
Defeated the Logon Duck in the Upper Quarters.
Complete the bestiary.
Rescue all of the musicians.
Acquire all of the progression abilities.
Defeat Draythus in The Orphanage.
Upgrade your Light Bar to the maximum.
Defeat the Reaper.
Defeat Link.
Defeat Maelzel.
Find all eight cartographer's journals.
Defeat Miria.
Find ten secret rooms.
Defeat Limo and Nissi.
Successfully perform four quick heals with Radical Acceptance in a row.
Save Talos' Heart in Talos Core.
Defeat the Horned God.
Defeat Locrian Sentinel in Talos Core.
Defeat the Gear of Erebus.
Defeat Frinise.
Defeat the Shadow of Demise.
Defeat Hekate's Illusion in the Capra Cauldrons.
Defeat Leno.
Defeat the Shadow of Despair.
Defeat Issa Kabeer.
Defeat the Mask of Andros in the Eucalyptus Garden.
Defeat the Shadow of Hope.
Defeat Ulf.
Defeat the Tantalus Roach in the Forgotten Pond.
Kill the same common enemy ten times.
Defeat the Dwarven Guard.
Perform a Lullaby for the first time.