[phailhaus]

Falling sand games bring back a lot of nostalgia. If you're interested, you should check out dan-ball's version which is one of the progenitors of the genre. Over the years he's added a ton of features, elements, and interactions, to the point where it now has a fluid mechanics simulation for air!

https://dan-ball.jp/en/javagame/dust/

[bijection]

Ha55ii's powder game is perhaps the best of the genre, and the ease of sharing made for a pretty cool online community circa 15 years ago. I remember various calculators / computers created in powder game, along with a bunch of artistic efforts.

[moritonal]

If you didn't know, Dan-ball has a variety of fun free mobile games that are all great.