You searched for an online game builder. This one is a download.

This is not an in-browser builder and pretending otherwise would waste your time. It is an app you install. What you get for that is a game that runs on your own hardware instead of inside a tab.

Being straight about it

Flockbay is a desktop application for Mac and Windows. You download it and install it. There is no version that runs in a browser tab, and there is no plan to pretend there is one for the length of a landing page.

It is worth saying in the first paragraph because the wrong tool wastes more of your time than the wrong search result. If you specifically need to work from a Chromebook, a locked-down school machine, or a computer you cannot install software on, this is not it and you should look elsewhere.

If the reason you searched for online was convenience rather than constraint, the rest of this page is about what the download buys.

What a tab costs, and it is not only 3D that pays

Browser tools are constrained by the browser, not by their own ambition. Memory is limited, the graphics API is a reduced one, load times are long because everything arrives over the wire, and the tab is competing with everything else you have open.

You can see the effect in what browser builders show off. Small scenes, short draw distances, thin lighting, a handful of moving things. Those are not stylistic choices.

Flockbay ships with Godot inside it and runs your game locally, on your graphics card and your memory. In a 3D world that buys terrain, weather, real shadows and a populated scene as the intended shape rather than the ambitious edge of what fits.

The easy assumption is that a flat game does not care, because a tab can manage flat. The part that still bites is ownership: a 2D game made in a tab lives inside somebody else's service, and the same game made here is a Godot project in a folder, running as a native build on your machine. That is the same trade in both dimensions, and it is the one that lasts.

The part that is still online

Building needs an internet connection. Director 1, asset generation and world data all come over the network, so this is not an offline tool and it will not work on a plane.

What does not need a connection is playing the game you built. It runs locally on the bundled Godot.

So the honest description is a local app with an online build step, rather than either an offline tool or a web app. If your constraint is connectivity rather than installation, that distinction is the one that matters.

Who the download suits

Someone on their own Mac or Windows machine who wants a game people would sit down and play for an hour. The install is a one-time cost and after it you are working against your own hardware rather than a shared budget.

Which game is a question the app asks before it makes anything: 2D or 3D, two pictures, no default, nothing created until you pick one. Pick 2D and what opens is already running — a sky, a band of scenery along the horizon, ground with a ledge cut into it, a platform off to one side, and a person who walks, falls and jumps under the keys you are pressing. Widening the ground is dragging across it, and what you drag stops a walker as soon as you let go, because the tiles, the edges and the collision all fall out of which cells are ground.

Someone who wants the project to be theirs. It is a real Godot project on your disk whichever of the two you picked. Godot is open source, so it opens whether or not you keep using this app. A browser tool cannot offer that in the same way.

The download is free and the builder is free to use, so finding out whether it suits you does not cost anything. Indie is $10 a month and unlocks the AI assistance: Director 1 writing your gameplay logic, and generation — textures, sounds, props and rigs in a 3D project, a single flat picture in a 2D one.

If you were searching for free rather than online

Some people search for online because they are looking for something with no commitment rather than something in a tab. If that is you, the answer is simpler than the rest of this page.

The download is free and building by hand costs nothing but the install. Indie is $10 a month and unlocks the AI assistance; the free plan includes a limited trial of it, so you can see what Director 1 does before deciding.

You also keep what you make. It is a Godot project on your disk and Godot is open source, so nothing is stranded if you decide the tool is not for you.

What you would give up by staying in the browser

It is worth naming the trade in both directions. Browser tools start instantly, work on any machine, and share with a link. Those are real advantages and for some projects they are decisive.

What you give up is the size of the world, the framerate, and control of the project. The tempting reading is that only a 3D world with terrain and weather feels the first two, and that is roughly right. The third has nothing to do with dimension: a small 2D game built in a tab is still stranded in the service that made it, and the same game built here is a folder you can open in Godot on any day you like.

Pick on the game rather than on the convenience. The install is a one-time cost; the ceiling is a permanent one.

Questions

Is there any way to use it in a browser?
No. It is a desktop app for Mac and Windows.
Will there be a web version?
Nothing is being built that way. The game running locally is the design rather than a stage it is passing through.
Do I need to be online?
To build, yes, because the AI and world data come over the network. To play what you built, no.
Is it worth downloading for a 2D game?
Yes. 2D is one of the two pictures you pick from when you make a project, not a reduced mode: same app, same builder, same Director 1. A new 2D project opens playable, the ground you paint is walkable as you paint it, and 55,073 of the Catalogue's 60,648 objects are sprites.
Can I work on a school or work machine?
Only if you can install software on it. If you cannot, this is the wrong tool.
What does it cost?
The download is free and the builder is free to use. Indie is $10 a month, which unlocks the AI assistance.