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