Here is the full list of all 37 Last Days Of Tascaria achievements.
Protect the mages that are summoning a demon.
Kill the mages that are summoning a demon
You managed to get the Book of the Dead
Reach the portal of the first region
Survive against the ogres in the Blackhorn fortress
Free the gold thief that is guarded by orcs during daytime
Release the dragon from his prison
Destroy the magic barrier that the Council of mages is using to keep you out
Slay the Golem
Defeat the Ogre that is extorting the goblin merchants
Find the stolen gold
Defeat the necromancer
Save the king of elves
Get the souls of the banshees after defeating them
Give rest to the banshees after you defeat them
Kill Ugur poisoning him
Kill Vrotgur poisoning him
Defeat Ugur in combat
Defeat Vrotgur in combat
Manage to get help from the orc army
Take the goblin in the swamp to the portal
Defeat the gold thieves
Defeat the scorpion in the desert
Recruit the cleric in the desert
You got help from the Ancient Ones.
Now the clerics rule Tascaria with iron hand
You provided the cure for the elven sickness
You learnt how to use demonology
A group of demons will serve you
You freed the lost souls in the sacred woods
You manage to save Tascaria but all the elves died.
You save Tascaria and things are back to normal
You destroyed the statue of the Lich King and call it a day
You defeated Chalishae, but now the council of mages rule Tascaria
You got the relic that can destroy other relics
Your allies were possessed by demons, but you got a nice reward in exchange
You manage to save Tascaria and now you can rule it using your army of Lost souls