Circuit Master 2

A green light is the only proof you did it right in Circuit Master 2. Everything else - the wires, the fans, the machines - can look perfectly placed and still fail the second you hit that power button.

The actual game is drag-and-drop: pull each component onto its slot on the grid, thinking through what belongs where before you commit. Every piece has its own quirks, so a fan won't behave like a wire and a machine won't sit happily just anywhere. Get the layout right, flip the switch, and you'll watch electricity actually flow through your circuit.

Stuck? There's a hint button for exactly that moment when you're staring at the grid convinced you've missed something obvious. It plays on desktop with simple mouse drag-and-drop, and just as easily on Android and iPhone, so a quick round works whether you're at a desk or waiting around with your phone.

If you like puzzles that reward careful thinking over quick reflexes, this sits nicely alongside other Puzzle games on the site, and fans of Brain Training Games will feel right at home here.

Wire every component correctly, then hit power and watch for the green light - that's how you know your circuit actually works.

On desktop, drag and drop wires, fans, and machines onto their spots on the grid with your mouse, then click the red power button to send electricity through. Each component behaves differently, so placement matters more than speed.

If a layout has you stumped, use the hint button before you waste a guess on the power switch. Think through each component's role before placing it rather than placing first and fixing later.