Phase Choir

Phase Choir is a compact one-button browser puzzle built around routing, repetition, and synchronization.

Route repeating 6-second pulses so they hit the core in perfect sync.

Each level gives you a small rail network with junctions. Your live pulse moves automatically. Tap at the right junctions to change its route. When a 6-second loop ends, that routing pattern repeats while you guide a new pulse. Up to three pulses can overlap, and later levels ask you to line up multiple routes so the core receives every required hit together.

There are nine levels in this test build, including two-pulse and three-pulse synchronization, misleading shortcuts, chained junctions, and both horizontal and vertical layouts. The game is designed to work in-browser on desktop and mobile, in either orientation.

Controls: Tap/click, or press Space.

This is an early playtest build. I’m especially interested in whether the rule becomes clear without a long tutorial, and whether finishing a level makes you want to try another.

AI tools assisted the code, procedural visual system, WebAudio sound design, and text; there are no AI-generated image assets.