# An AI game builder that builds the world, and leaves you the controls

The word builder is doing real work here. Flockbay builds the world and the code from a brief you approved, and plays the game to check it. Nothing is built behind your back, and every world tool is a button in the Godot editor for you too. Flockbay is free, AI included: free hosted AI every day, or your own Claude, ChatGPT, agent or API key. It runs on Windows, macOS and Linux, on the official Godot engine.

Source: https://flockbay.com/ai-game-builder/ · Updated 2026-10-18

## Two jobs, and a brief that joins them

Making a game is two very different kinds of work. One is arranging things until they look and feel right, which is judged by eye and cannot be specified in advance. The other is writing the code that makes them behave, which is exact, tedious and largely the same in every project.

Most AI game tools try to do both from a prompt. The result is that the part you have opinions about gets guessed at, and the guess is never quite it. You end up [describing a world in sentences](/blog/when-to-stop-prompting-and-start-building/) and getting back somebody else's idea of it.

Flockbay does both, but not from a prompt. It starts with a brief: questions one round at a time, each with a recommendation, then what gets built first, what comes after, and what is not in this version. Nothing is built until you approve it. Then it builds the world with its world tools and writes the code as GDScript inside your project. The judging by eye is where you come in: you play it and say what is wrong, and when the fix is a matter of taste, you can make it yourself.

## What building actually looks like

It starts with your sentence. Flockbay reads it, says whether it is a 2D or a 3D game, and nothing is created until you confirm. What that answer changes is which world tools there are, not how many of them you get.

In 3D, Flockbay starts with terrain. It raises it, carves it and paints it, puts water where the brief wants water, adds weather and a sky, plants trees, and places buildings, props and characters. Then it runs the game and captures the viewport to see how it reads.

In 2D, it starts with ground. Ground is painted cells, and the tiles, the edges and the collision all fall out of which cells are ground, so a painted block stops a walker as soon as it exists, and nobody picks a corner piece out of a palette. Behind it sits a sky colour and one band of scenery along the horizon. In front of it go sprites at an exact position, rotation and scale, out of a Catalogue where 55,073 of the 60,648 objects are sprites.

Every one of those tools is also a button around the Godot editor's own 3D or 2D view: Sculpt, Paint, Plants, Place, Water, Sky, Weather, Player controller, NPCs and Camera in 3D; Paint, Place and Player controller in 2D. That is not a fallback for when the AI cannot manage. It is for the calls that are pure taste. A sentence gets you a hill. Dragging it gets you the exact hill, and Godot's undo takes it back.

The game is also where you see [whether it is any good](/blog/how-to-judge-a-game-you-did-not-code/), because you can press play and walk it whenever you want.

## Nothing changes that you did not ask for

Flockbay does what you asked for, world and code alike: the terrain, the props and the player controller, then movement, inventory, dialogue, enemy behaviour, objectives, saving and menus. It writes the GDScript inside your project and plays the game to check its own work: it sends input events, reads stdout and the debugger, and captures the viewport.

Flockbay does not rearrange your world on its own. Either it made a change you asked for, held against the brief you approved, or you made it yourself in the editor. That matters, because a tool that changes your level without telling you is a tool you cannot trust with a level you care about.

You then play it and say whether it is right. That is the loop, and it is meant to run many times.

## The facts about the app

It is a desktop app for Windows, macOS and Linux, downloaded and installed. The engine underneath is Godot, open source. Your project is a real Godot project on your own disk.

The game runs locally on the copy of Godot that ships with the app. No streaming, no browser preview. Building [needs an internet connection](/answers/does-flockbay-work-offline/) because the chat, asset generation and world data come over the network. Playing what you built does not.

The download is free and every world tool is free to use. Flockbay is free, AI included: free hosted AI every day, or your own Claude or ChatGPT, your own agent, or an API key. [Flockbay builds from a library of ready-made objects, or with Godot's own shapes](/ai-game-asset-generator/).

## Starting a project without a design document

You do not need a design document to start. The brief is the short version of one, and Flockbay writes it with you. A useful first hour is a small piece of world you like the look of, a way to walk around in it, and seeing how it feels.

That is a better opening than long planning, because what you learn is real. A world that feels good to move through will suggest a game. [A game planned on paper](/blog/how-to-plan-a-game-before-you-build-it/) often turns out not to want the world you imagined.

The project can grow outward from that. Add a reason to be there, then something to do, then something that can go wrong. Each step is a description and a play session, and each one tells you what the next should be.

## Handing work back is the loop

You will play something, decide it is wrong, and ask for it again. That happens many times and it is not a sign that anything failed.

The more specific the complaint, the better the next version. It is too slow is less useful than it takes too long to get moving after I press the key, and the second is a sentence anyone can write without knowing what the code looks like.

This is the part of the process that is genuinely yours. You are the only person who has played your game, and the whole tool is arranged around getting your reaction back into the project quickly.

## Questions

### Does the AI build the world for me?

Yes, from a brief you approve first. It builds the terrain, the props and the player controller with its world tools, writes the code, and plays the game to check it. The same tools are buttons in the Godot editor, so any spot you want exact is yours to change.

### Can I build a 2D game with it?

Yes. Flockbay settles 2D or 3D with you before a project exists, and 2D is the same app and the same chat. What changes is the tools: painted tile ground and placed sprites instead of terrain, water and weather.

### Do I need to be able to code?

No. You describe what should happen, play the result, and say whether it is right.

### Is it a website?

No. It is a desktop app for Windows, macOS and Linux, and the game runs on your machine.

### What does it cost?

Free to download, and every world tool is free. Flockbay is free, AI included: free hosted AI every day, or your own Claude or ChatGPT, your own agent, or an API key.

### Can I open my project outside the app?

Yes. It is a Godot project and Godot is open source.

Download Flockbay free: Free to download for Windows, macOS and Linux. The world and the code, built from your brief. https://flockbay.com/

Related: [AI game creator](/ai-game-creator/), [AI game maker](/ai-game-maker/), [AI game engine](/ai-game-engine/), [AI game builder online](/ai-game-builder-online/), [No-code game engine](/no-code-game-engine/)