Looking for a game maker with no download

Stage Engine is a desktop app you install. That is the opposite of what you searched for, so here is the honest case for the trade, and when you should go elsewhere.

Straight answer: this one downloads

Stage Engine is an installer for Mac and Windows. There is no browser version, no cloud editor and no plan to add one. If your requirement is genuinely absolute — a school machine you cannot install on, a work laptop that is locked, a Chromebook — then stop here, because nothing below will change that.

If the requirement is softer than that, and "no download" mostly means "I do not want to install some 40GB thing and spend an evening configuring it", then it is worth reading on. The install is a normal application install and it brings Godot with it, so there is no second setup step.

Why a browser tool is not the free option people think

A tool that runs in a tab is running on someone else's machine, and everything follows from that. Your world is limited to what their server will render for you at their cost. Your framerate is whatever the tab allows. Your project lives with them, and it stops existing on the day they stop paying for it.

That is why browser game makers steer you toward small flat scenes with a handful of objects. It is not a design philosophy. It is a hosting bill. A world with real terrain, weather and a few hundred simulated characters is not something anyone will render for you for free in a tab.

The download is what removes that ceiling. When your game runs locally you get your own machine's GPU and memory, and nobody has to be paid for the frames.

What you actually install

One application, containing the builder and a copy of Godot. You open it and you are in a world you can shape by hand: terrain, water, weather, buildings, characters. Director 1 writes the GDScript for behaviour, inside your project, and you press play and the game runs on your machine.

The project it produces is a real Godot project in a folder you own. That is a second thing the download buys. If you decide tomorrow that you dislike this tool, you still have the game, because it is not a row in someone's database.

Building does need an internet connection — Director 1, asset generation and world data all come over the network. So this is not offline software. It is local software with an online part, which is a different thing and worth being precise about.

When you should not download it

If you want to make something small in twenty minutes and put a link to it in a group chat, a browser tool wins outright and you should use one. Web games are trivially shareable and this is not a web-first tool.

If the machine you are on cannot install software, this is not a preference problem and there is no workaround. Same if you are on a phone or a tablet.

What is left is the case where you want to make something that would not fit in a tab. That is what the install is for. It is free, there is a free plan, and Indie and Pro at $10 and $50 a month buy more usage rather than a different engine.

Questions

Is there any way to use it without downloading?
No. Stage Engine is a desktop app for Mac and Windows and has to be installed.
How big is the install?
It is a normal desktop application that includes its own copy of Godot, so it is a single install rather than an engine plus a toolchain plus assets.
Does it work offline once installed?
Playing what you built works offline. Building does not: the AI, asset generation and world data all come over the network.
Can I make web games with it?
It is built for games that run locally on the bundled Godot. If shipping to a browser is the whole point of your project, a web-first tool is the better fit.
Do I need to sign up?
You need an account, because the building half runs against services that have to know who you are. There is a free plan.