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