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.
Escape the collapsing cave.
Complete the Eventide Sanctuary.
Complete the The Archives.
Complete the The Monastery.
Complete the game.
Speak to all of the spirit animals.
Discover all areas of the map.
Get some Lambaby love.
Find Erin when she's gone.
Find the Ancient Llamba.
Find the Crab Island.
Find the bones of an old beast.
Find the dwellings of the rift cult.
Find the ancient battlefield.
Find the chiseled stone map.
Find the giant birdshrine.
Find the statue of the fox.
Find the statue of the deer.
Find the statue of crane.
Step into the well.