Here is the full list of all 13 Shadows: Heretic Kingdoms achievements.
Reach level 30.
Reach level 20.
Avoid fighting the Werewolf Berserkers.
Have Zaar fulfill his most fervent desire.
Complete Book One.
Reach level 10.
Acquire the Reaper sword.
Defeat the Scorpion King.
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