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