A puzzle game about timing: you build machines out of light. A pulse crosses one cell per tick, so a longer route arrives later — distance is time. Lay conduits, split and merge colours, and beat your own count of ticks, cost and area.

Light is fast, but not infinitely fast. A pulse covers exactly one cell per tick. The longer way round arrives later.

That is the whole rule. Everything else in this game follows from it.

Build


  • Draw conduits like a line. Nine tenths of every machine is that.
  • Parts of every shape: forks, coils, prisms, switches. There is always another way through.
  • Rings that keep their own time. Send one pulse in and they beat away until you stop them.

It can always be better


Ticks, cost, cells. Three numbers, and they disagree.

Or make your own


Your own parts, your own levels, your own chapters. Build whatever you like and pass it on.

What else is in there


  • Over 99 levels across eight chapters, plus free play without end and one a day for everybody.
  • Co-op and duel. Two players on the same board, over Steam.



AI was used in the development of this game. (Which is also why it is free. 🤖)