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.
You're Fired
Case Unsolved
Missing Journalist
Completionist
Truth Revealed
All Letters Found
All Keys Found
Steve Moss' Story
Wanda Tyler's Story
Best Friends Forever
Charles Roberts' Story
Oliver Gibson's Story
All Tools Found
Bernard Hopkin's Story
Bloody Knife
Sofia Miller's Story
Dorothy Patterson's Story
All Newspaper Articles Found
Here Lies Sofia
Vivian Roberts' Story
Scott Brooks' Story
Scott's Secrets
The Hidden Truth
Matthew Brooks' Story
Trisha Roberts' Story
The Secret Lies With Her
Derrick Tyler's Story
Dying Man's Letter
Mary Martinez's Story
Andrew Reed's Story
Guest's Lost Cap
Tutorial Completed
James Howard's Story