Gunship Battle: Crypto Conflict

The near future. Global warming has exceeded every projection that was supposed to define worst-case outcomes. The seas are rising fast. Migration across every ocean and continent has produced conflicts that are escalating toward something that could become a third World War. Into this: Armada announces it has nuclear weapons and the intention to use them to eradicate what remains of the world's peace. The old structures — countries, militaries, navies — have already collapsed. What remains is a single battleship, its crew, and a deserted island. Work with what is left.