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
You know the truth
Taste of Tuscany wine
They try to hold the pieces together
He still has a name
Unlock Chapter 12c
Unlock Chapter 12b
Unlock Chapter 12a
Unlock Chapter 6a
Unlock Final chapter
Finally, a place to rest
They used to work in the garden
Someone is freshen
Unlock Chapter 12d
Life thrives there
A secret place under the massive wall
Unlock Chapter 6b
Unlock Chapter 5
Find the first part of Renée's diary