How to vibe code a game with one prompt (free, with GitHub Copilot)

0:00 Vibe code a game with one prompt

In this video, I'll show you how to build a glowing space shooter game that runs in your browser, just by describing it to an AI. You won't write any code. You tell GitHub Copilot what you want, it builds the whole game and tests it, and then you play it and tell it what to fix. It all works on Copilot's free plan. You'll need VS Code with Copilot connected to Linux, which we set up in the previous video. The link is in the description.

0:31 Start a new project

Every project gets its own folder, so the AI keeps all of its files together. Click File, then Open Folder, type a name like space shooter and click OK to create

0:42 Let Copilot work without asking (Allow all)

it. By default, Copilot stops and asks before it runs a command or opens a page. To let it work on its own, click the permissions button under the chat box and choose Allow all. VS Code warns you that it will now run everything without asking, so click Enable. That's fine here because it's a brand new folder on your own computer with nothing to lose. When you work on something important, like a server, switch it back to Default permissions.

1:10 The one prompt that builds the game

Make sure the chat is set to Agent, then describe the game you want in plain English. Build me a neon space shooter game that runs in my browser. Make it glow, add explosions and sound effects, keep score with a saved high score, and make it work with the keyboard or touch on a phone. Copilot plans the game, writes it and then plays it in a browser built into VS Code to check that it works. The more detail you give it, the closer the first version gets to what you pictured. That's why the prompt names the look, the sounds, the score and the controls. When it says Completed, it's done, and it sums up what it built.

1:49 Play the game

Click Keep to save the changes. Copilot often leaves its browser in phone size after testing the touch controls, so close that toolbar to see the whole game. Now press start and play it. Move with the arrow keys and shoot with the space bar. But look at the shots. They fly down instead of up, so you can never hit anything. Copilot said it tested the game and still missed this, which is why you always try it yourself.

2:16 Fix a bug by describing it

When something's wrong, just tell Copilot what you see, in plain words, like when I shoot, the bullets go down instead of up. You don't need to know where the problem is. Copilot finds it in its own code, fixes it and tests the game again. Click Keep, then play it again. Now the shots go up and the score climbs.

2:44 Add a boss fight and upgrades

Now let's add something new. Ask for a boss fight after the first wave, and missile upgrades that drop from destroyed enemies. Copilot adds both to the game you already have, without breaking what works, and tests them again. Click Keep and play. Grab a missile upgrade, clear the first wave and take down the boss. Each upgrade you pick up adds more missiles to every shot. That's all it takes to build a game with vibe coding and an AI agent. You bring the ideas, the agent brings the know-how, and together you can finally build the project you've been dreaming about. Be sure to leave a like and subscribe, so we can keep bringing you more great videos.