All of the examples that I tried reached steady state extremely quickly. 2D game of life can often go for quite a while before reaching steady state.<p>I do not know if this is because the rule used for 3D isn't very good, or if this is a problem with all rules for 3D games like this. It is actually very hard to find good rules that don't just explode or die off or reach steady state quickly.<p>Searching for "better rules of life" was a project of mine a while back, and I looked at all possible rules for 2D that are of the same format as the standard except using 5x5, and although I did find some that had better stats for not reaching steady state/exploding/etc, none had that "character" of conway's game of life of unpredictability, it really is a remarkable game.