"Piano Tiles Online" is a captivating rhythm game that challenges players to tap black tiles in sync with a musical track while avoiding white tiles. The game features various modes, including classic, arcade, and zen, each offering different levels of difficulty and speed. Players can compete with friends or other players globally, aiming to achieve high scores and climb the leaderboards. With its simple yet addictive gameplay, "Piano Tiles Online" provides an enjoyable musical experience for players of all ages.