Full list of all 36 Conan Exiles achievements worth 1,460 gamerscore. It takes around 1-2 hours to unlock all of the achievements in the base game on Xbox One.
The base game contains 25 achievements worth 1,000 Gamerscore, and there are 3 DLC packs containing 11 achievements worth 460 Gamerscore.
Reach the highlands
Reach the volcano
Place a thrall crafter in a crafting station
Put an enemy in the Wheel of Pain
Fall for 3 seconds without dying
Reach the skies above the Exiled Lands
Defeat the King Beneath
Defeat the Kinscourge
Defeat Hrungnir of the Frost
Defeat the Sewer Abomination
Defeat the Undead Dragon
Defeat the Giant Spider
Defeat the Giant Crocodile
Reach level 60
Reach level 50
Reach level 40
Reach level 30
Use a religious altar
Kill something by standing on its head
Create your first building
Reach level 20
Reach level 10
Sleep on a bed or bedroll
Complete the first chapter of the Journey
Get a dedicated weapon
Explore the Isle of Siptah
Enter the Maelstrom
Draw Forth the Most Powerful Surge
Reach the Tower
Visit a Leyshrine
Explore a Vault
Defeat a Surge Summons
Obtain ?????
Memorize Seven Sigils at Once
Memorize a Sigil
Craft an Item Using Eldarium