I’ve been playing with this for a couple of hours now - very addictive: The Falling Sand Game.
It’s fun pouring oil on things and setting it on fire, or trying to grow plants at one end while you burn them at the other to get a perpetual motion thing going. Also, you can make sand art.
I’ve been having fun lately making mixtures of salt and oil that burn, but very slowly. Seing if I can keep a blob of fire going in the middle of the stuff, being perpetually fed from on top.
Yes, I was totally addicted to this about six months ago. If you look around on the original Japanese site, there’s a version with little people. The wax is kind of strange and interesting too.