Beat Rhytm Game

Six generated tracks, four difficulty tiers, and timing windows that get meaner as you climb. Shoot your own photo and play a run inside it.

Beat Rhytm Game is a tap-timing rhythm game built around one honest idea: hit the line, and do not break the chain. Notes fall down four lanes toward a lit strike line. Tap the lane the moment a note crosses it. Land inside the tightest window and you take a Flawless; drift and you take a Sharp, a Loose, or you drop it. Every graded hit feeds a chain, the chain drives a multiplier, and one dropped note sends the whole thing back to zero. A vitality rail beside the heart tracks how the run is going — clean hits push it up, drops pull it down hard, and if it empties the run ends where it stands. The music is not a download — it is built while you play. There are no audio files in this app. A synthesis engine assembles a kick, a bass line and an arpeggio live from each track's own scale and tempo, which is why the beat you are tapping and the beat you are hearing are the same beat. Six tracks, six scales, six tempos from a 96 BPM warm-up to a 158 BPM closer. Charts are woven, not hand-placed — and they are the same every time. Each chart is generated from a fixed seed built out of the track, the tier and your lane count, in four-bar phrases with a call, an answer, a breath and a fill. Density ramps through the run and eases off in the closing phrase so the finish lands instead of walling up. Because the seed never changes, a personal best on Fierce is a real comparison against every other run on Fierce. Four tiers that actually feel different. Mellow opens the gates wide and slows the fall. Steady is the track at its honest tempo. Fierce brings chords and closes the gaps. Savage tightens every window and doubles the density. Make the room yours. Four rendered rooms ship with the app, or you can shoot a photo with the camera — or pick one from your library — and have the lanes fall over it. The photo never leaves the device. Somewhere to put the results. Every run lands on a ladder you can filter by track, and twelve achievements track themselves in the background across four tiers, from a first cleared set to a million banked points. There is no sign-in anywhere in this app. Built for iPhone and iPad, portrait and landscape, with the play area sized so the notes never travel further than a thumb can chase.