Here is the full list of all 36 Unbound: Worlds Apart achievements.
Witness the beginning of the end
Awaken a forbidden power
Find the first map-maker
Enter the sanctuary
Destroy the Eyrie
Use light to claim a powerful relic
Meet with the old Guardian
Find a way into the abandoned mine
Meet the giant record keeper
Find a way to reach new heights
Defy gravity to claim a powerful relic
Use strength to claim a powerful relic.
Enter the world of sand
Save a lost villager
Save 5 villagers
Save 11 villagers
Save 20 villagers
Save 30 villagers
Save all the villagers
Save every villager in the forest
Save every villager in the desert
Talk with the family friend
Cleanse the forest core
Cleanse the desert core
Harnessed every world
Activate 30 waypoints
Slay the Demon King
Find paradise
Talk with all the spirits
Leap over a gate
Step into the dark world
Enter the sand village
Free the stern Guardian
Become a master of everything
Discover the truth
Speak with both shady mages