Nuclear War Submarine inc Indie Hardcore Simulator is an indie hardcore warship simulator, in which you will live a life of a military sub commander, who operates his own submarine, fleet and naval warfare. This new underwater 2d ww arcade may change your opinion about atom uboats and marine lifestyle, because you’ll have to deal with naval warfare and destroy military ships. Your guess is correct – operating a 2d sub, an atom uboat or a battleship is very hard! Be that very captain of a submar