Dessgeega (via the Gamer’s Quarter forums) describes Powder Game as World of Sand plus fluid dynamics, and you know what, she’s totally right! It’s fun.
And holy shit, I’ve got a lot of vertical space left, so I just want to say that the forums have been up for a couple months now, and it’s exactly how I envisioned it: people making games together, sharing information, giving feedback, starting up friendly competitions… it’s been really proactive and the discussions have been fruitful. So yeah, you guys frickin’ rule! Let’s keep showin’ ‘em how it’s done!