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