The Last Day Defense

You find yourself in the middle of the persistent military conflict between two cosmic empires – both of them come from the Earth, both of them conduct R&D on time manipulation, and both are equally powerful in synthesizing necessary materials from any other ones by means of energy – the main source of the future civilizations. This struggle is ongoing for several centuries… but the enemy goes for a desperate and dangerous move – changing the course of history… …They send their crew and a massive replicator (which can produce a diverse weapon, equipment, and machines out of nothing) to the pas...