Here  is something that works and it seems it'll continue working. It does feel a bit laggy on my computer, but it can be used.

There are also out-of-browser versions of Puffin here. I didn't try any of them, but they're worth looking at for those Win/Mac users who cannot or don't want to use Plarium Play.

Mobile versions are available as well, which I tried years ago on Android and - while it wasn't the best experience ever - it was a decent patch for the lack of the mobile support.

If you do try any of these, please write a short note here to let the others know if and how it worked for you.