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