Core Wars is a simulation game. A number of programs are loaded into a virtual machine and executed. The programs can try to crash each other, manipulate other programs, overwrite as much memory as they can, etc... The "best" program is selected according to a scoring mechanism which involves the number of memory cells the program has overwritten, the number of other programs it has crashed and whether/when it crashed. WWW: http://corewars.sourceforge.net/ - jim