Learn how to build HTML5 games with Dart in this video from Kevin Moore. Kevin walks you through his open-source Pop Pop Win! game.
Kevin used HTML5 canvas, Web Audio API, and more. He also uses his BOT pub package, which is a collection "of (mostly) general libraries to make working with Dart more productive." You can see all the code to Pop Pop Win! on Github. The game even works on desktop and mobile!