Wire it. Fix it. Power it.

Harder as you go — help always on. Every challenge has a 💡 Hint button (your clear next step) and a 👁️ Help / Show Me button (highlights the right part, wire or answer). Free vs paid: the first 3 challenges in each world, Workshop Project 1, the Daily Challenge and the Field Guide are Free — the 🔒 Pro finale in each world and Master extras need Pro / Master below.

📊 Player Stats Owner view — opens your Google Analytics dashboard: how many people played, how long they played, and where they are playing from. Brand-new numbers can take up to 48 hours to appear.

This is the game part: no quiz. Choose a project, grab the right tool, and connect the wires yourself. Touch / mouse: tap one terminal, then tap the next. Controller / keyboard: press the Controller button below, move with arrow keys or D-pad, press Enter / A button to pick a terminal. Connect every wire in the list, then hit Test Circuit.

1 · Pick your tool

Wire & ConnectorUse this to connect terminals Wire StripperPrep wire ends before connecting ScrewdriverTighten terminals after wiring MultimeterTest for voltage & continuity

Tool selected: Wire & Connector — tap two terminals to join them.

⭐ Finish a project for +40 XP. Wrong wire? No fail — the game shows you what happened and lets you try again. That's how you learn by doing.

This is the hands-on game: every tool and part you need is in the tray on the side. Tap a tool or part to pick it up (or drag it onto the board), then tap where it goes. Right spot: it snaps in with a green glow. Wrong spot: red flash, sparks, and a plain reason why. Build in order — meter → main breaker → branch breakers → wires → outlet, switch, light — then flip the main breaker and watch the current flow and the house come alive. Works by touch, mouse, and keyboard (Tab + Enter).

Same way you built the house: tap a tool or part in the tray to pick it up, then tap where it goes on the car. Right spot snaps in green; wrong spot sparks red and tells you why. Build in order — battery pack → motor → controller → main cable → charge port, lights, dash — then tap the dashboard to start it and watch it come alive: wheels turning, headlights beaming, dash lit.

A small plane is just flying electrics: tap a part in the tray, then tap where it goes. Battery → starter → alternator → bus cable → avionics, nav lights, landing light — then flip the master switch in the cockpit and watch the prop spin, the instruments light up, and the nav lights blink.

A phone is a tiny electrical system you hold in one hand. Build the open phone on the left — tap a part in the tray, then tap its slot — battery, motherboard, flex cable, camera, speaker, charging port — fit the screen on the right, then press the power button and watch it light up.

Pick any build below. They all play the same hands-on way as Build the House: tools and parts in the tray on the side, tap or drag each part onto the board, step by step. Right spot snaps in green; wrong spot sparks red and tells you why. 💡 Hint gives the exact next step and 👁️ Help makes the right part and spot glow. And the best part: when you finish, the machine really works — the car, truck and bus drive off, the plane, drone and rocket fly away, the boat sails, the robot walks, the motor and turbine spin, the elevator rides up and down, and the solar house and smart home light up. Every build is worth +60 XP and up to 3 stars. Builds 1–4 are the full-size House, Car, Plane and Phone games above — the other 36 play right here in the Build Bench below.

Built: 0 / 40 · ★ 0 / 120

Solar panels get used in a lot of different ways — on a house roof feeding the grid, off-grid at a cabin, on an RV, charging a car, in a fold-up kit you can carry, and across a whole solar farm. Build all six the hands-on way: tools and parts in the tray on the side, tap or drag each part onto the board, step by step. Right spot snaps in green; wrong spot sparks red and tells you why — including decoy parts that teach you what does not belong in a solar system. 💡 Hint gives the exact next step and 👁️ Help makes the right part and spot glow. And every project ends the way it should: switch it on and watch the system actually run — sun shining, power flowing through the wires, batteries charging, meters moving, and the thing it powers coming alive. Every project is worth +60 XP and up to 3 stars.

Solar projects built: 0 / 6 · ★ 0 / 18

Two special builds that speak out loud when you finish them. Build the Talking Smart House and it greets you, reports its lights, solar charging, door locks and power — in a real voice, with its words in a speech bubble on screen. Build the Talking Smart Car and it tells you its systems are ready and its battery is charged… then it drives off. Same hands-on play: tools and parts in the tray, tap or drag each part into place, instant right-or-wrong feedback, 💡 Hint and 👁️ Help. Each build is worth +60 XP and up to 3 stars. Voices use your browser's built-in speech — tap the 🔊 Voice button any time to turn the sound off or back on.

Talking builds built: 0 / 2 · ★ 0 / 6  🔊 Voice: ON

⬇ Download the free Field Guide & NEC cheat sheet A printable one-pager: Ohm's Law, wire colors, breaker pairing, car voltages, solar sizing, and the key NEC 2023 articles from the Code Library.

Electrical codes update on a 3-year cycle — the NEC is revised every three years, and states adopt new editions on their own schedules, so always confirm your local adoption with your building department (the AHJ). Each card below shows the article, the code year the rule comes from, and a red flag anywhere the rule changed — so you never learn an outdated rule without knowing it.

How it makes money: the game is free to start, so it's easy to share and easy to try. Players who want the full game pay once — no subscription, no pay-to-win. New content packs and each 3-year Code Update Pack keep long-time players coming back.