This article describes a gamified technical writing assignment inspired by the Hunt a Killer board games. Students solve a fictional mystery by analyzing AI-generated technical documents as an introduction to the most common deliverables and genres in the field and practice of Technical and Professional Communication. Grounded in research on gamification and AI, this activity fosters experiential learning by situating technical writing genres as both structured and dynamic tools. By combining genre analysis with collaborative problem-solving, the assignment offers a novel approach to teaching genre in technical writing, emphasizing flexibility and critical thinking.