Conway's game of life variations Is there any known two-dimensional Conway's game of life variation where each cell can not be just on/off but able to hold more states, maybe 4 or 5?

I can recomend the software Golly, it's so far ahead of anything else and easy to use. Generations rules are similar to Lifelike rules such as Conways Life but have more states. Alternitivly WireWorld as mentioned above is an example in Golly of a Rule Table, and their are many other for more human engineered cellular automata.
