Full list of all 20 AER - Memories of Old achievements worth 1,000 gamerscore. It takes around 2-3 hours to unlock all of the achievements on Xbox One.
Complete the game.
Complete the The Monastery.
Complete the The Archives.
Speak to all of the spirit animals.
Find Erin when she's gone.
Complete the Eventide Sanctuary.
Find the statue of crane.
Find the statue of the deer.
Find the statue of the fox.
Find the giant birdshrine.
Find the chiseled stone map.
Find the ancient battlefield.
Find the dwellings of the rift cult.
Find the bones of an old beast.
Find the Ancient Llamba.
Step into the well.
Get some Lambaby love.
Discover all areas of the map.
Find the Crab Island.
Escape the collapsing cave.