Gear Spin

Gear Spin is a mechanical puzzle that feels like assembling a tiny clockwork engine. The board shows a network of fixed gears with a driver gear at one end, and your job is to drop in the missing gears so power flows from the driver through every wheel on the board. When you've placed them correctly, every gear spins in unison — a small but deeply satisfying win.

Drag a gear from your inventory onto a marked socket on the board. Gear size matters: larger gears need larger sockets. Once placed, gears engage automatically with any neighbor they touch. To check your progress, hit the spin button — the driver rotates and you can watch the chain transmit (or fail to transmit) through the network.

Always start by mapping the path from driver to end-point. Pick the gears that have to fill specific-size sockets first; the smaller filler gears are usually flexible. If two gears mesh directly, they spin in opposite directions — sometimes a level needs you to add an extra gear just to flip rotation direction. Watch for "dead branches" — gears that don't connect to the main chain are decoys.

Gear Spin scratches the same itch as building Lego — there's a tactile pleasure in clicking pieces into place, and the visual payoff when the whole machine starts turning together is exceptional. The puzzle design is clever: every level introduces a new wrinkle (size mismatches, direction constraints, branching paths) but the core rules stay consistent.

Perfect for fans of Rube Goldberg machines, contraption puzzles, and anyone with an engineering mindset. If you like watching how things connect and work, this game is built for you.