Carter Bays spent some time looking for good 3D life rules - see his papers the Journal of Complex Systems. See also: http://www.cse.sc.edu/~bays/d4d4d4/ http:

Carter Bays spent some time looking for good 3D life rules - see his papers the Journal of Complex Systems. See also: http://www.cse.sc.edu/~bays/d4d4d4/ http://www.cse.sc.edu/~bays/d4d4d4/ for a Java implementation