Here is the full list of all 20 The Town of Light achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Find all the drawings
Find all of Renée's diary entries
They used to work in the garden
Taste of Tuscany wine
Unlock Chapter 12c
They try to hold the pieces together
Unlock Chapter 12b
You know the truth
A secret place under the massive wall
Unlock Chapter 12a
He still has a name
Unlock Chapter 6a
Unlock Final chapter
Someone is freshen
Finally, a place to rest
Unlock Chapter 12d
Life thrives there
Unlock Chapter 6b
Unlock Chapter 5
Find the first part of Renée's diary