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