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