Every case is a cold case file. Twenty-six documents are open from the start. Reports, statements, photographs, phone records, a map. Read everything. Pin what matters. Some documents are routine paperwork that leads nowhere, as in a real file; the ones that matter were written to be cross-referenced with another.
There are no objectives to tick off and no hints. Nothing in the file is bolded or annotated for you. You decide who is lying, what killed the victim and why, the way a cold-case detective would, with your own notes and your own timeline.
When you are ready, name the killer. You get one accusation and it is final. Right or wrong, the sealed solution envelope opens: it names the killer and lays out, document by document, what the file actually proved.
Alone, your progress saves on your device. With friends, open a room and share a 5-letter code. Everyone reads on their own phone; pins, notes and the accusation stay in sync for three hours (the host can extend). Up to eight detectives. Nobody pays.
There are no hints. Read the documents you skipped, compare times and names across statements, and check what the people sheet leaves out. There is no timer; your progress is saved.
All six cases are free. Case 01 is the gentlest start; case 03 is the hardest.