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