Decktective - Testament Without Heir is an investigation game for a group of friends (but also playable alone). Holland, 1698. Cornelius Kloos, the elderly president of the Kloos Trading Company, is found dead. The safe in his study is open: inside there is a still sealed will. Thirst for power? Greed? Vendetta? What led to this tragic ending? Collect the clues: documents, traces, witness statements ... Investigate, and formulate plausible theories. In a Deck of cards, a mysterious case for real Detectives!