Here is the full list of all 21 AER - Memories of Old (HK/TW) trophies - there are 14 silver, 6 gold and 1 platinum.
Explore the Land of Gods.
Find Erin when she's gone.
Complete the game.
Discover all areas of the map.
Complete the The Monastery.
Find the Ancient Llamba.
Complete the The Archives.
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.
Find the chiseled stone map.
Find the giant birdshrine.
Find the statue of the crane.
Complete the Eventide Sanctuary.
Step into the well.
Find the statue of the deer.
Find the Crab Island.
Get some Lambaby love.
Escape the collapsing cave.