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