Here is the full list of all 26 The Kids We Were achievements.
Finish the bonus episode.
Finish the main story.
Completed your catalog.
Finish chapter 15.
Finish chapter 14.
Finish chapter 13.
Collected 80 catalog entries.
Finish chapter 12.
Collected 70 catalog entries.
Collected 60 catalog entries.
Finish chapter 11.
Finish chapter 10.
Collected 50 catalog entries.
Finish chapter 9.
Finish chapter 8.
Collected 40 catalog entries.
Finish chapter 7.
Finish chapter 6.
Collected 30 catalog entries.
Finish chapter 5.
Collected 20 catalog entries.
Collected 10 catalog entries.
Finish chapter 4.
Finish chapter 2.
Finish chapter 3.
Finish chapter 1.