Here is the full list of all 36 Conan Exiles achievements.
Defeat Hrungnir of the Frost
Defeat the King Beneath
Defeat the Giant Spider
Reach the volcano
Reach level 60
Reach level 50
Defeat the Kinscourge
Put an enemy in the Wheel of Pain
Reach level 40
Create your first building
Craft an Exceptional or Flawless item
Defeat the Sewer Abomination
Reach level 30
Defeat the Giant Crocodile
Use a religious altar
Reach level 20
Sleep on a bed or bedroll
Complete the first chapter of the Journey
Reach level 10
Get a Dedicated Weapon
Reach the highlands
Fall for 3 seconds without dying
Defeat the Undead Dragon
Reach the skies above the Exiled Lands
Kill something by standing on its head