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