A free browser rhythm sim — no download, no account. Tap W on the beat: strokes landed on time build the tempo, mistimed ones break it, and spamming collapses it entirely. Fill the meter, release at the peak, switch positions on the fly, pick your setting — bedroom, sunset beach, neon rooftop, poolside, sauna or snow cabin — and swap between free-orbit and first-person POV, with optional music.