Anomalous takes users to a fictional and totalitarian city-state called Kosolov. Local authorities managed to brainwash the population and forced residents to work to exhaustion in order to get rich at someone else’s expense. One day, the leaders of an industrial and closed country began to experiment on people. They decided to increase the military potential of the state and began to conduct experiments on dead workers in order to revive them and make them perform their duties again. Attempts to use regenerative biomass and install bioimplants led to a disaster. After this event, the city was filled with mutants.