Web

Hyperion games can run in the browser, built to WebAssembly and rendered with WebGPU.

What you'll need

Web builds are made on Windows (for now), from an editor you built from source.

emsdk, with EMSDK pointing at it. The engine's web build is made with Emscripten 6.0.11.
Ninja on your PATH.
PowerShell 7 (pwsh), for compressing the cooked content.
Python on your PATH, to serve the build locally.
The engine built for the web, plus a regular Windows Release build (packaging uses its cooking tools):
```
build.bat Web Release
build.bat Release
```

The web build checks that the engine's web libraries are newer than its source, and asks you to rebuild them if not.

Item	What it does
Build › Package for Web	Cooks your content and builds the game into `Binaries/Web` in your project folder.
Play in Web Browser (in the menu next to Play)	Builds if needed, then serves the build locally and opens it in your browser.

The editor can't build C# game projects for the web yet.

Binaries/Web is a plain folder of static files, so any static host can serve it as it is. Intermediate files go to Build/Web.

New projects limit textures to 256 pixels for the web, to keep downloads small. Change it in Packaging Settings.

Tools/Scripts/BuildWebGame.ps1 does the same as the editor:

pwsh Tools/Scripts/BuildWebGame.ps1 -Project Projects/MyGame -Run

Option	What it does
`-Run`	Serves the build afterwards and opens it in your browser.
`-ServeOnly`	Skips the build, and serves the last one.
`-FastLink`	Links at `-O1` instead of `-Oz`: minutes faster, for testing locally.
`-MaxTextureSize`	Overrides the texture limit.
`-Worlds`	The worlds to include, comma separated. Defaults to the world being edited.

To serve a build you've already made: Tools\Scripts\ServeWeb.bat Projects\MyGame (port 8080 unless you pass another).

You can play a web build of our sample game right now.