⏸ Planning: take your time. Build, inspect, then Space to resume.
WASD/edge pan · scroll zoom · Q/E rotate · 1-5 or click guide to pick · click map to build · Esc/right-click deselect · X demolish mode · B guide · C recenter · Space pause
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Welcome to Grid Town! Alpha
Hi there! Welcome to Grid Town, a new town with new residents moving in every day. Your job is to build the town's energy grid and keep the lights on as the town grows, doing your best to use sustainable energy sources to reduce pollution. Good luck!
New in v0.6
Commercial & industrial buildings: shops, factories, and data centers now move into the town on their own and pay you for the power you keep flowing to them. Full game mode only for now.
New ways to build: hydro dams along the river, plus Power Purchase Agreements that add clean power for each new business.
Daily Grid polish: the forecast now tells you the truth about how tough a day really plays, and more.
Smoother on mobile: twist two fingers to rotate the view, with touch and sound fixes.
Your cursor starts in inspect mode: hover a house, plant, or line to see what it's doing. To build:
Pick a source: press its number key 1–5 or click it in the build guide on the right.
Click a tile near homes. The green lines show which homes it reaches.
Press Esc or right-click to go back to inspecting.
Build on open ground only, not water, houses, or roads. And good operators pause to plan: Space stops the clock, building doesn't.
📊 Read the Control Room
The bottom strip is your control room. Two panels run it.
📅 TODAY (center) is your day at a glance: the colored mountain is the power you're making, the white line is what the town needs, hour by hour. Keep the mountain above the line; a red gap means homes go dark. It also runs ahead to tonight's 19:00 dinner rush, and a chip spells out how short you'll be and what covers it: batteries or gas.
💰 MONEY (right) shows your net income per second: what lit homes pay, minus upkeep and gas fuel. When it dips below the line, your costs are outrunning your income. Catch it there before your balance feels it.
One more thing: demand keeps rising as the town grows and homes electrify. A grid that's enough today won't be enough next week.
🏭 Two Ways to Lose
Pollution: gas is cheap and runs anytime, but it pollutes. Lean on it too hard and emissions hit the cap: game over. Bankruptcy: every plant costs upkeep for as long as it stands, so an overbuilt grid bleeds cash even when idle. Let your balance sit in the red and it's over too. Grow fast, but don't choke the town or overbuild.
🏆 How to Win: Sustainable City
Run a real town entirely on clean power. You reach a ⭐ Sustainable City when you hold all of this for 90 seconds:
50 homes powered
no homes going dark: the grid keeps up all night
no gas burning: sun, wind, nuclear & batteries only
enough always-on backup for the peak: nuclear, batteries, or a gas reserve that could ride out a windless night
Ready to begin
First time? The tutorial is one guided evening on a real grid; you keep the town after. Or jump straight into the full game.
🔊 Best with sound on: lo-fi music plays as you build. Mute anytime with the 🔊 button up top.
Game Over
⭐ Sustainable City!
You're powering a whole town on clean energy: no gas, no brownouts. That's the win. 🎉
What's on your mind? I read every piece of feedback.
Sent straight to the developer.
Thank you. 🙏
Grid Upgrades
Our researchers have come up with three innovations to help you in your work. We only have the capacity to adopt one, so the choice is yours.
🔬 Grid Upgrades incoming
Your researchers are hard at work. Starting tomorrow, they'll bring you a set of Grid Upgrades at each dawn: new innovations that make running the grid easier. You can adopt one each day, so pick the one that helps you most.
⚡ Run the Energy Transition
You're this town's grid operator, and the whole energy transition is on you: Coal Age to clean grid, one dawn at a time.
Day 1: coal only. Cheap and always-on, but it smokes even at 3 a.m. — it can't throttle below its must-run floor, and every extra plant piles on more smoke.
The smog meter is a countdown. Let it hit the cap and the air board shuts you down. Retiring coal is the one big lever that slows it.
Each dawn, adopt one new technology. Hydro, gas, geothermal, wind, solar, battery, nuclear — the draft grows what you can build, one pick at a time.
Terrain gatekeeps. Hydro only builds on river banks; geothermal only on steaming vents. Select one and the map lights up where you're allowed.
Win: a Sustainable City with clear skies. Grow and fully serve the town on clean power with no fossils burning, then clear the accumulated smog until the sky is nearly clean — and hold it.
⚡ Grid paused — blackout
Homes across town just went dark, so the sim paused to give you a beat. Take a moment to make a plan, then start again when you're ready.
This dawn edition looks back on the day & night just past.❦Est. Day 1 · Vol. I · One Clean Megawatt