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