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