Every beam has a solution.
Bend light through mirrors, prisms and logic gates until every ring glows. Each bounce plays a note, so every solution becomes its own melody.
No timers, no lives, no sign-up. Sound on is best.
A calm puzzle with a clever streak
Every level was checked by a solver, so there is always a way through.
Light becomes music
Every bounce plays a note, and each solved circuit plays back as a melody.
Real logic
Wire doors, sensors and gates using nothing but beams of light.
A new puzzle every day
One shared board for everyone, with a streak to keep alive.
Flux Run
An endless climb with no clock. Waste moves and your charge drains.
Earn it by playing
Stars unlock themes and beam styles on the Path of Light.
Made for everyone
Colour assist patterns, reduced motion and no time pressure.
See it glow
Eight chapters of new ideas, from simple mirrors to portals and logic doors.



Demo or full game
Play the first chapter here. The full game will be free to download on Android.
| Feature | Browser demo | Google Play |
|---|---|---|
| Levels | 20 | 180 |
| Daily puzzle and Flux Run | Yes | Yes |
| Works offline | No | Yes |
| Flux leaderboard | No | Yes |
| Daily reminder | No | Yes |