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