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