Here is the full list of all 13 Shadows: Heretic Kingdoms achievements.
Reach level 30.
Reach level 20.
Complete Book One.
Have Zaar fulfill his most fervent desire.
Avoid fighting the Werewolf Berserkers.
Defeat the Scorpion King.
Acquire the Reaper sword.
Reach level 10.
Successfully escape Thole.
Defeat the Aphotic Spider Queen and her minions.
Max out one of your skills with any puppet.
Unlock the Ishkai Sniper soul.
Earn second level