How to make a game with ChatGPT, from idea to link

Step 01Design the game in chat

Before any code, talk the idea through. Ask ChatGPT to find the core loop and cut everything else:

I want a browser game about a fox that steals cheese from a farm. Suggest three versions of the core loop that fit in one screen, then pick the simplest and write a one-page design: goal, controls, how you lose, what makes the next round harder.

You get a short design document. Keep it: you will paste it into every later step, and it stops the AI from drifting into features you never asked for. Good first games have one action the player repeats: dodge, match, tap, aim.

Step 02Prototype in Canvas

Ask for a playable version that runs right in ChatGPT:

Using this design, write the game as a single HTML file with Phaser. Arrow keys on desktop, swipe on mobile. Placeholder shapes, no images.

Play it in the preview and give feedback one thing at a time: "the fox is too slow", "the farmer should speed up every 20 seconds". When something breaks, paste the exact error. This loop is where ChatGPT is at its best, and it is free of any platform.

Step 03Know what the prototype is missing

The prototype is a toy until it gets the parts every real game needs:

• accounts, so a player keeps progress on a new phone;
• saved progress and inventory on a server, not in the browser;
• a store where prices are checked by a server, not stored in the page;
• leaderboards, quests and daily rewards that bring players back;
• hosting at a link you can share.

ChatGPT can write any of these, but each one is a backend project. On iDos Games they already exist, and ChatGPT can use them through the connector.

Step 04Create the game and connect ChatGPT

Open Create, paste your design document as the idea and answer a few questions. The platform picks a starting template, and the AI coder makes a playable first version: see create with AI.

Then add a custom connector in ChatGPT with the address:

https://site.idosgames.com/api/v2/mcp

On first use ChatGPT asks you to sign in to iDos Games and pick the apps it may work with. No API keys. The exact menu path is on idosgames.com/mcp. Now you can run the game's economy from the chat:

• "Create a store with three coin packs and a free daily gift."
• "Make three daily quests: for wins, for purchases and for upgrades."
• "Add a weekly leaderboard by best score."
• "Generate an icon for the cheese item and put it into the store."

These are server settings, so they change in the live game without a new build.

Step 05Let Codex write the code

For changes in the game code, connect Codex to both iDos Games servers:

codex mcp add idosgames --url https://site.idosgames.com/api/v2/mcp
codex mcp add idosgames-registry -- npx -y @idosgames/mcp

Ask it to load the skill idosgames-getting-started and build your app from the design document. It uses the ready modules and the TypeScript SDK instead of writing a backend from scratch, and Phaser code from your Canvas prototype carries over. All options for agents: building with AI agents over MCP.

Step 06Test and publish

Build the game, upload the build to the test copy and give me the link.

Play it on a phone, fix what feels wrong, then ask to deploy the tested build. The game goes live at {id}.idos.games, and you can list it in the idosgames.com catalog when you are ready. A rollback is one click in the dashboard.