I played this a bunch as a kid and when it broke, loosing compatibility with java and modern browsers, I vowed to revive it one day. I was going on a walk with a friend(Sean Day) and he said why not today, I wanna make a game tonight, and I love cellular automata!
Take turns placing(double tap) pieces on the board. You can place a piece either on a blank space, or your spaces. When a stack reaches the CRITICAL MASS(glowing) it explodes and scatters the pieces in all directions. If any of these scattering pieces land on your opponent’s pieces, they are OVERTHROWN and become yours.
Source: itch.io