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