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