Start your experiment, the one that might bring the humanity to the darkest times since the medieval ages. The viruses and mass epidemics happen from time to time, but this one will become the last in the history. You are a scientist that strives to develop a type of a biological weapon that would naturally spread across the globe and kill every living person. The game allows you to play with different characteristics of the virus, increase its resistance and mutation capacities, and choose the place where the epidemics will start. Do your best to make it infect as many people as possible and end the life on Earth once and forever.