The game
A pulse leaves the source and travels one cell every beat. Every receiver is waiting for it on a particular beat — not a beat early, not a beat late — and your job is to place mirrors and other pieces so that every branch of the pulse lands on a receiver at exactly the beat it wants. Miss by one, or run into a wall, and the level is lost.
Each zone introduces a new piece that bends the timing: splitters that fork one pulse into several, each of which still has to arrive on cue; delays and boosts that add or refund a beat; portals; a second source. Every level is procedurally generated and then solved by the game before it ships, so the tray holds exactly the pieces a solution needs — no filler, nothing missing. And a new daily puzzle arrives every day, the same board for everyone, with a global leaderboard and a streak to keep.
Price
The first two zones are free. One purchase unlocks every zone for good, along with the daily leaderboard. No ads, no subscriptions, ever — and the daily puzzle itself is always free to play.
Support
Questions or bug reports: lkavenagh+isochrone@gmail.com