A power-routing puzzle of tangled connectors, rotate each tile until the core's glow flows out to light every node on the board.
The grid is full of connector tiles pointing in scrambled directions. Rotate each one until its ends link up into a single unbroken network fed from the glowing core. A node only lights when power can reach it, so the puzzle is solved when the whole board is energised and no connector dangles unused.
Rotating scrambled connector tiles until they form one unbroken network is the pipe puzzle, whose ancestor is Pipe Mania — developed by The Assembly Line for the Amiga in 1989 and distributed in the US by Lucasfilm Games as Pipe Dream.
The original framing is electrical rather than plumbing: a node lights only when power can reach it from the glowing core, and the board is solved when everything is energised with no connector left dangling.
Pipe Mania was played against a clock, with water advancing while you laid track. Removing the timer and demanding a complete circuit turns it into a static logic puzzle, where the constraint is not speed but that every tile has to serve the one network.
Further reading: Counting the Ways a Grid Can Light
Conduit is an original free browser game in the rotate-to-connect pipe-puzzle genre, where untangling a scrambled network into one fully powered circuit is the whole satisfying challenge.
The daily board is seven tiles wide and seven tall. It looks small. Then you count how many ways it can be turned, and the number stops looking small at all.