Designed to make you observe, question and connect the clues.

  • search

    MORE THAN A PUZZLE

    Every challenge unfolds like a real investigation.

  • psychology

    BUILT ON LOGIC

    Notice details, rule out possibilities and earn the solution.

  • groups

    PLAY YOUR WAY

    Solve alone, on date night or with a group of friends.

  • visibility

    TRAIN YOUR EYE

    Sharpen your focus while doing something genuinely addictive.

    PRINTABLE COLD-CASE EXPERIENCE

    Prefer To Work A Full Case File?

    Step into the investigator’s role with seven complete cases built from evidence—not chapters. Study every statement, test every alibi and follow the trail until only one suspect remains.

    folder_open 7 complete printable investigations

    fact_check Photos, statements, records and forensic evidence

    task_alt One logical killer in every case

    OPEN THE UNSOLVED MURDERS