Here is the full list of all 33 The Painscreek Killings achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Case Unsolved
Missing Journalist
Completionist
All Letters Found
Sofia Miller's Story
Derrick Tyler's Story
Wanda Tyler's Story
Charles Roberts' Story
Best Friends Forever
All Keys Found
Truth Revealed
Bloody Knife
Bernard Hopkin's Story
Oliver Gibson's Story
All Tools Found
Dorothy Patterson's Story
All Newspaper Articles Found
Steve Moss' Story
Here Lies Sofia
Vivian Roberts' Story
Scott Brooks' Story
Scott's Secrets
Matthew Brooks' Story
The Hidden Truth
Trisha Roberts' Story
Dying Man's Letter
Andrew Reed's Story
The Secret Lies With Her
Mary Martinez's Story
Guest's Lost Cap
Tutorial Completed
James Howard's Story
You're Fired