Play it here: http://cbprojs.com/pipedream/ (requires unity web player plugin to be downloaded. It doesn’t perform well on older hardware or some mobile devices without graphics accelerator. It also doen’t like some browsers. works fine here on chrome.
Pipedream is the project that got me going when I first came across Unitz. One of the most talented coders posted a tutorial on it. his handle: catlikecoding. The tutorial I followed to get me going was this one: swirly-pipe.
I decided to add a start screen and change some of the objects, and implement some diamonds for points. but really I did nothing much. I will post the project on github at some point. but it is so simple, and the tutorial is so good, that you are better off going to the catlike coding site and learn things from there. Don’t forget to Patronize him 🙂