Here is the full list of all 21 One Small Fire At A Time achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Find the Owner of the Glass Slipper
Obtain the True Ending
Finish Chapter 15
Finish with An Alternate Ending
Finish Chapter 9
Finish Chapter 10.5
Finish Chapter 14
Finish Chapter 13
Finish Chapter 12
Finish Chapter 11
Finish Chapter 10
Finish Chapter 8
Finish Chapter 7
Finish Chapter 6
Finish Chapter 5
Finish Chapter 4
Finish Chapter 3
Finish Chapter 2
Finish Chapter 1