耳だけ捜査線 is a free puzzle game available on Android that challenges players to solve crimes alongside members of a police department. The game revolves around gathering testimonies from witnesses, where players must discern the innocent from the guilty based solely on their statements. Each character presents unique insights, and players must strategically 'listen' to the right ones to progress in the investigation.

In this immersive gameplay experience, players engage with a cast of quirky police station characters while piecing together clues. Once all testimonies are collected, players can identify the criminal by switching the button to arrest them. With its focus on deduction and interaction, 耳だけ捜査線 promises an entertaining and thought-provoking experience for puzzle enthusiasts.