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