The starting rule is /12345 and the rule mutation rate is 1.5 percent.
Here's a zip file with the free cellular automata software which powers the unique exhibit above. This includes the free Modern Cellular Automata Java applet (a free Java cellular automata applet) and free Javascript cellular automata software. If you're looking for free hexagonal cellular automata software or free color cellular automata software you've found the right place. Ditto if you're looking for free CA software or a free Java CA applet or free Java CA software or free Javascript CA software. Because Modern Cellular Automata is written in Java it also qualifies as free Macintosh cellular automata software, free Macintosh CA software, free unix cellular automata software, and free unix CA software. Some might consider free CA software to be free artificial life software or free ALife software. Finally it might also be considered free Game Of Life software, a free Game Of Life Java applet, free GOL software, or a free GOL Java applet.
Hopefully the following all indicate the presence of free cellular automata software in one form or another: cellulaire d'automates logiciel libre, automate cellulaire logiciel, freie zellulare Automaten-Software, software celular de los autómatas libre, software cellulare delle automazioni, libero, software celular dos autômatos, livre. Apologies if I butchered your language.
You can try out the free cellular automata software using either of the following free cellular automata tools: