Publish to Google Play

I've bought NightSky through Humble Bundle a long time ago, I've played the game to the end and enjoyed it.

So, why isn't it published to the Play Store? You cannot buy it now through Humble Store either.

I imagine that decision lies mostly in the hands of Nicalis, the publisher... you probably won't find the answers you seek here.

Thanks for replying. I've sent a message to Nicalis through their pixelated website, let's see if their feedback web form works...