Here is the full list of all 10 The House in Fata Morgana: A Requiem for Innocence achievements.
Complete Part I.
Complete the interlude.
Complete Part II.
Complete Assento Dele.
Complete the first untold tale.
Complete the second untold tale.
Complete the third untold tale.
Complete Happily Ever ~After~.
Take a peek behind the scenes (again).
Find the hidden fragment.