Core War   Seems an Indian site.

Corewar Emulator for LISP

RoboCom   Cool!!! A table-top game inspired by corewar.

Java-Applet   For ICWS88 only

COSC 4F90 Project   Parallel Core War Environment and Genetic Procreation of Warriors

Corewar Emulator for ZX Spectrum

Corewar at Ghent University   Don't know if it works ;-)

Visualization of Information Trade Wars