• Free & Open Source: Starling does not cost a dime. Download and use it right away — no strings attached. And because it is Open Source, you're always in control: step through the code and learn from its internals. Everything is well documented and easy to understand. Drop your in-house engine and focus on your games! • Platform independent: Write your code once and deploy it — everywhere! As Starling is built on top of Adobe's Flash™ technology, it runs not only in the browser, but on all major mobile platforms out there, including iOS and Android. That simplifies your development, too: debug your game comfortably in the Flash Player, then deploy it on your mobile phone. • Amazing Performance, familiar API: Starling is a pure ActionScript 3 library that mimics the conventional Flash display list architecture. In contrast to conventional display objects, however, all content is rendered directly by the GPU — providing a rendering performance unlike anything before. This is made possible by Flash's "Stage3D" technology. • Embraced by Adobe™, powered by the Community: Adobe supports the development of Starling and plans to integrate it tightly into its tools. You get the best of both worlds: corporate commitment and a vivid community. Starling's community is praised for its friendliness and is always there for you when you need help — 24/7.

* Design and code an app that’s easy to navigate and looks great on a variety of devices and screen sizes. * Define your app’s personality through color, typography, and motion. * Controls are the building blocks you use to create a UI. A pattern is recipe for combining controls to make something new. * Customize your app for specific types of input and devices. * Make your app more inclusive through accessibility and globalization, app settings, and in-app help. * Jump-start your project with design templates and tools. * Learn about our design philosophy and the theory behind our design recommendations.