Here's the link for the MMO: https://www.starstable.com/en/

And the links to the app.

Google Play Store: https://play.google.com/store/apps/d...rstable.horses
iTunes App Store: https://itunes.apple.com/us/app/star...126342383?mt=8

With a bit of tweeking, I got the app to play on my Kindle Fire too. You just need to sideload the Google Play Store and then use that to download the app onto the Kindle. There's tutorials on how add the Google Play store on your Kindle Fire all over YouTube. It's not hard at all, and there's actually no hacking involved.