Here is the full list of all 32 Elderand achievements.
Explore 100% of the map
Win in the arena mode
Put an end to the cult
Defeat Dan’nuhrr
Collect 30k gold
Defeat Amon
Defeat the Chaos touched reject trio
Defeat Eloria
Refine an equipment to the max
Forge the Glimpse of the titan
Defeat Elderu'tamah
Perform a special attack for the first time
Defeat Sserthris
Free Elderu'tamah
Perform all rituals
Help Eran
Defeat Black Virtue
Kill 50 Mysterious Mourner
Defeat Erik Zan
Make a potion for the first time
Help Guam
Defeat Shakna
Upgrade your equipment for the first time
Find Pascal's hammer
Defeat the Chaos touched reject
Unlock the fast travel
Defeat Rok'naar
Get to level 100
Take the throne
Purge all evil
Collect all the notes
Save Eloria