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