Pyro Sand Game
This brand new version of the old Falling Sand game is way better. With this one you can blow things up with Nitro, C-4, Napalm and Gunpowder. It's a blast!
http://digg.com/playable_web_games/Pyro_Sand_Game

Falling Sand Game: Pyro Edition This is yet another version of the famed and highly addictive falling sand game which is believed to be of Japanese origin. The game appears on several websites throughout the net in multiple variati...
http://fallingsandgame.com/sand/pyro.html

Falling Sand Game "Falling Sand Game" is the name of a series of Java applets created by Dofi Blog, and noted on the Fark forums. The original version, named "World of Sand" was later enlarged and rehosted by Chirag Me...
http://www.answers.com/topic/falling-sand-game

wxSand: The Falling Sand Game
Owen Piette's version of The Falling Sand Game including C++ source code.
http://www.piettes.com/fallingsandgame/

EnigmaSand- Falling Sand Game Clone
EnigmaSand a clone of the slightly famous Falling Sand Game that is infamous for wasting time and being highly addictive
http://www.netalive.org/topics/43072

Falling Sand Forum
Falling Sand Game, fun and highly addictive.
http://fallingsandgame.com/

Hi-res version of Falling Sand Java Game
Highly addictive Zen-Garden-like game where you control flow of sand, water, salt, and oil by drawing walls, plants, sprouts, cera (wax).
http://chir.ag/stuff/sand/

Pyro Sand Game Here is the Falling Sand song and the highly addictive online game, puzzle, or what ever you'd lie to call it game where you control flow of sand, water, salt, and oil by drawing walls, plants, sprout...
http://fallingsandgame.com/sand/sand.html