Here is the full list of all 14 Dreams of an Exile achievements.
Get the tool "Heavy Hammer".
Get all eight tools.
Restore the Health Necklace.
Find all four Energy Rings.
Find all 60 Dream Shards.
Get the Forest Key.
Get the Beach Key.
Get the Mountain Key.
Reach the end of Erendriel's Tomb.
Get the "Queen of Darkness" ending.
Get the "Princess and the Knight" ending.
Get the "Tearless Melody" ending.
Get the tool "Scepter of Flames".
Finish the ritual to open Erendriel's Tomb.