Here is the full list of all 30 Avadon 3: The Warborn achievements.
Complete Avadon on any difficulty.
Complete Avadon on Hard difficulty or higher.
Restore Redbeard to his rightful place. (Normal difficulty or higher.)
Complete the entire game without ever using a Resurrection scroll. (Normal difficulty or higher.)
Infiltrate. Learn. Escape.
Have Nicodemus craft six items for you.
Kill a dragon. (Hard difficulty or higher.)
Kill a god. Not an old, feeble god. One of the tough ones. (Torment difficulty.)
Bring Avadon knowledge of three libraries.
Recover the great traitor's invitation.
Bring peace to the Beraza Woods with minimal bloodshed.
Steal the invitation from the servant of a living god.
Read 30 codexes.
Establish your dominance over the Warborn.
Deal with the brutal stalemate in The Kva.
Cement your alliance with the ogres.
Recover from Avadon everything that you need.
Free the Eternal Prisoner.
Put on your own magical disguise.
Win a Hand's loyalty.
Find the irritant that is expanding The Corruption. Remove it.
Augment 20 items.
Find a route to peace with the Wyldrylm rebels.
Drive Dheless out of Khemeria.
Report Geert's fate, good or bad.
Complete the tutorial.
Open a secret door.
Complete Avadon on Torment difficulty.
Take the throne. (Normal difficulty or higher.)
On the Corruption border, fight all six Farlanders at once.