Bacon2D is a game engine using QML that's powered by the Box2D simulation engine. It's really designed to be a straightforward and versatile game engine written around QML for making simple 2D games. This open-source game engine currently handles the graphics rendering, physics/collision detection, sound, artificial intelligence, scripting, and networking support. Going forward on the Bacon2D menu is support for loading scenes from tiled maps, loading/saving of game levels, steering behavior support, and a Bacon2D editor.
The Bacon2D project was shared by Kevin VanDine on Thursday during the online Ubuntu Developer Summit about Game Development on Ubuntu Touch.
If you're interested in learning more about this QML-based 2D game engine, visit Bacon2D.com. There's also Kevin's presentation slides from the vUDS event.