It looks like this project had funding for two developers for 6 months. They set up a web page

http://www.stellarsupernova.com/

Which is still up, however the Twitter and Facebook pages appear to have been deleted.

This is right up my street, I'm not sure how the equations for stellar nucleosynthesis could be reduced to run in a browser, perhaps they tried to simplify too far? Or trying to gamify it was too tricky. I can't imagine many people beyond physics students will follow this.

If they've paused I wish them good luck, if the code is orphaned it'd be good to see it open sourced, I imagine there are a few people who'do like to contribute.