Firefox OS

• Mobile operating system
• Developed by Mozilla
• Pure HTML5 and JavaScript
• Freely customizable
• Open sourced
• Targeted for low-end devices
• "New old" ecosystem

Test in the browser

Firefox OS Simulator as a plugin in the browser

Grab your device

Geeksphone developer preview, more coming soon.

Optimize

• Whole-pixel rendering
• Cache drawing in an offscreen canvas
• Use moz-opaque on the canvas tag (Firefox only)
• Scale canvas using CSS3 Transforms
• CSS for large background images
• Multiple canvases for layers

Source: Mozilla Hacks

Is HTML5 ready for gaming?

The good parts

• Free
• One code base
• Thousands of developers already
• True cross platform
• For every device with a browser
• Distribution through URLs
• Ease of use, plugin-free
• Open source code, easy to learn
• Instant updates
• Store independent

The weak spots

• Audio API
• Performance?
• Monetisation?
• Offline?
• Development environment?
• Limited trough technology
• Open source code
• HTML5 vs native

Avoid mistakes

• Mobile first
• Don't code for one browser only
• Feature detection, not browser sniffing
• Build finished products, not demos

The future of HTML5 game dev is bright

• Faster browsers
• Distribution platforms
• Better game engines
• HTML5 APIs (Payment, Audio)

Prepare your game

for the Fifefox OS platform

• It's just HTML5!
• Nothing new to learn
• Manifest file and a submit process

The manifest file

manifest.webapp

{
    "name": "My App",
    "description": "My description goes here",
    "launch_path": "/",
    "icons": {
        "128": "/img/icon-128.png"
    },
    "developer": {
        "name": "Your name or organization",
        "url": "http://your-homepage-here.org"
    },
    "default_locale": "en"
}							

The submit form

Case study - Captain Rogers

Andrzej Mazur (coding, Enclave Games)
Robert Podgórski (graphics, Blackmoon Design)

Rogers story

• Very simple, but polished game
• Built with ImpactJS game engine
• Prepared and optimized for Firefox OS devices
• Submitted to the Marketplace in minutes

In the Marketplace

On an actual device

Lessons learned

• It's very easy to adapt your game
• Documentation is ready
• Attend events to gain experience
• Ask questions, give feedback
• Use the opportunity