Making Your Web Game Into an Executable

Turning your browser game into a desktop executable helps you ship to platforms like Steam, distribute builds directly, or stand out from typical web links.

Playroom Kit is built for the web and relies on browser headers to access the JavaScript API. That means the cleanest path is still a web deployment.

However, you can package your game as a desktop app without breaking multiplayer, Matchmaking, or Stream Mode.

Think of it like how tools such as Figma or Miro run in the browser but also ship desktop wrappers. You are not rewriting the game. You are packaging it.

Why Package a Web Game as an Executable?

Packaging a web game as an executable allows you to:

• Distribute outside the browser
• Submit to platforms without native web support
• Improve perceived polish
• Bundle assets and configs
• Control runtime environment

This works regardless of engine or how deeply you use Playroom Kit.

Recommended Approaches

Using Electron (Most Recommended)

Best overall solution for packaging a web game as executable.

Electron lets you ship a Chromium + Node.js runtime bundled with your game. It is stable, maintained, and widely used in production apps like VS Code.

Why Electron?

• Actively maintained
• Full control over windowing and menus
• Can bundle your deployed Playroom game
• Works well with Playroom Kit multiplayer flows
• Steam-friendly compared to quick wrappers

How to Package a Playroom Kit Game with Electron (Optimized Setup)

1. Install Electron

npm init -y
npm install --save-dev electron

2. Create main.js

const { app, BrowserWindow } = require('electron')
 
function createWindow() {
  const win = new BrowserWindow({
    width: 1280,
    height: 720,
    autoHideMenuBar: true,
    webPreferences: {
      contextIsolation: true
    }
  })
 
  win.loadURL('https://your-game-domain.com')
}
 
app.whenReady().then(createWindow)

Replace https://your-game-domain.com with your deployed Playroom Kit build.

3. Update package.json

{
  "main": "main.js",
  "scripts": {
    "start": "electron ."
  }
}

4. Run Locally

npm start

You now have a desktop app version of your Playroom multiplayer game.

Production Builds

For real distribution, use electron-builder:

npm install --save-dev electron-builder

Then configure build targets in package.json.

This produces:

• .exe for Windows
• .dmg for macOS
• .AppImage for Linux

Optimization Tips

• Always deploy your web build first
• Use HTTPS
• Disable devtools in production
• Lock window size if your game requires fixed aspect ratios
• Keep Playroom logic server-driven to avoid tampering

Electron is the most robust way to package a web game as executable while keeping Playroom Kit fully functional.

Using Progressive Web App (PWA)

Second best option if you want lightweight installation.

PWAs allow users to:

• Install from the browser
• Launch in standalone mode
• Work offline if configured

When to Use PWA

• Casual multiplayer games
• Direct distribution
• No need for Steam
• Minimal overhead

Basic PWA Setup

Add a manifest.json:

{
  "name": "My Multiplayer Game",
  "short_name": "Game",
  "start_url": "/",
  "display": "standalone",
  "background_color": "#000000",
  "theme_color": "#000000"
}

Register a service worker:

if ('serviceWorker' in navigator) {
  navigator.serviceWorker.register('/sw.js')
}

After deployment, browsers allow installation.

Advantages

• Zero packaging tools
• Native-like experience
• No Electron overhead
• Still fully compatible with Playroom Kit

Limitations

• Platform stores may not accept it
• Less control over runtime

If your goal is quick install and multiplayer hosting, PWA is excellent.

Using Nativefier (Legacy / Not Recommended for Production)

Nativefier wraps a website into an Electron shell automatically.

Installation

1. Install Node.js from https://nodejs.org/en/download
2. Install Nativefier:

npm install -g nativefier

If the command is not found, ensure your global npm path is added to system environment variables.

Usage

Deploy your game first:

https://your-game-domain.com

Then run:

nativefier https://your-game-domain.com --platform windows

Supported platforms include:

• windows
• linux
• mac
• osx

If no --platform is specified, it builds for your current OS.

Demo

Download the demo: https://acorn-studios.itch.io/multiplayer-shooter-program-playroom-example

You should be able to cross-play with web players.

Limitations Across All Wrappers

• If your game relies on dynamic room URLs, you must build custom room input logic
• Paid games on Steam must protect web endpoints properly
• Host-only flows may require custom UI
• Native wrappers do not remove backend exposure

Playroom Kit still runs through its web-based multiplayer infrastructure.

FAQ: Package Web Game as Executable

1. What is the best way to package a web game as executable?

Electron is the most reliable and production-ready solution.

2. Will Playroom Kit multiplayer still work inside Electron?

Yes. It loads your deployed web build, so matchmaking and presence work normally.

3. Can I publish an Electron build to Steam?

Yes, but ensure your backend and assets are secured properly.

4. Is PWA enough for multiplayer games?

Yes for casual distribution, no for major storefronts.

5. Why is Nativefier not recommended?

It is unmaintained and less secure for production use.

6. Should I wait for the Unity SDK?

Your call. Unity is still in early access and doesn’t support native builds yet. Electron is stable now.

Conclusion

If you want to package a web game as executable:

1. Use Electron for serious desktop distribution
2. Use PWA for lightweight installs
3. Use Nativefier only for quick experiments

All approaches allow your Playroom Kit multiplayer logic to continue running exactly as it does in the browser.