One of the most requested features is moss. I had some ideas, but wasn't sure how to actually draw it without a significant performance hit and so it would work on everything, not just with solid cubes. A couple of days ago, I finally figured it out the approach and I can now announce that the moss will be in the next update.

The simulation in the video only takes into account the lighting, but I'll extend it to use air moisture info as well. This will add more purpose to waterfalls and irrigation in general.