Can software model a modern Pacific naval war?

What system could be used to war-game a major Pacific conflict involving China, Russia, North Korea, the United States, Japan, South Korea, and Taiwan?

Public tools can explore the scenario, but classified and uncertain capabilities prevent an authoritative simulation.

A public simulation cannot establish the outcome confidently when the real performance of most participants' equipment is unknown. Games and professional tools must use declared or estimated capabilities. A Sea Power modification is suggested with the explicit caveat that it has not been tested personally, alongside versions of Harpoon. An unnamed command simulation adapted from military software provides another option, although its computing demands are considerable. One reported run used about 100 GB of memory by the tenth simulated day. These tools can explore choices and interactions within their assumptions.