Here is the full list of all 21 Havsala: Into the Soul Palace achievements.
Take more than 5 hints
Complete Chapter One
Complete Chapter Two
Complete Chapter Three
Collect each tarot card
Ace the memory test
Give only wrong answers for each memory test
Finish the game in a single take
Finish the game without taking any hints
Read any diary from previous chapters
Read the diaries of Salvino and Ynes
Read all pages of every book in the library.
Spend 5 minutes with the lyre without leaving
Give the book doge his bone
Solve the lyre puzzle on the first try
Do a tarot reading
Spread tarot more than 5 times
Poke the raven 20 times
Try solving the stargazing puzzle with half of the instructions
Place all three memoirs in the sacrarium
Finish the game