Here is the full list of all 44 Heavens Vault achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Meet a mechanicist
Meet a bartender
Meet a thief
Meet an injured labourer
Meet a survivor
A new friend!
I lost my friend.
Learn 20 Words
Pilgrims are welcome
Home
Learn 3 Words
Learn 5 Words
Learn 10 Words
Completed 1 Translation
Meet a friendly scholar
A moon of fresh air and pigs
Another robot to add to the collection...
Learn 1 Word
All things must come to an end...
Leave Everything Behind
Leave the Past Behind
An ancient Empress lies buried...
Things will never be the same again...
A friend has found a place to hide.
Pay your last respects
A spot of burglary
Bring a new student to the University
A name from the past...
What is this place...?
A moon of deals and spices
New game plus!
Learn 30 Words
Learn 50 Words
Completed 3 Translations
Completed 5 Translations
Completed 10 Translations
Completed 20 Translations
Completed 30 Translations
An ancient voice
It's only business...
Discover something priceless - and keep it secret
Seal the University
The pigs have something to say after all...
A legend from the Old Sea