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