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