Here is the full list of all 34 Moonscars achievements.
Unlock all achievements.
Receive help from the spared doppelganger.
Bring Her anger upon hermitess Karina.
Bring to old Horpyna clayborn child.
Discover all Special Weapons.
Complete the story of Grey Irma.
Bid Ion the last farewell.
Face Queen Yadwiga after her enthronement.
Slay Red Irma and cleave the Moon.
Learn a witchery of greatest power.
Receive all gifts from little Adelinka.
Help Etalag survive to the finale.
Maximize Ichor Gauge.
Meet Yarema's mould.
Slay Cruel Lajos of the Pristines.
Maximize Health Gauge.
Maximize regular weapon damage.
Listen to all stories of the mad clayborn.
Slay Sweet Wanda of the Pristines.
Die 10 times (and do not fall into despair).
Slay the friendly doppelganger.
Alleviate Moonhunger for the first time.
Slay Gniewko, the Royal Infant.
Kill 25 foes with status effects.
Spend 10 Ichoral Glands.
Fall under Moonhunger for the first time.
Parry 50 attacks.
Slay Traitor Chokran of the Pristines.
Stun 50 foes.
Throw 25 foes onto spikes.
Slay the first doppelganger of Irma.
Equip gemstones into all available slots.
Cast the very first clayborn mould.
Kill 5 foes in less than 3 seconds.