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