Great game. Different pathogens require using different stategies. Killing off the whole mankind is a safe and satisfying way to deal with stress. The game itself could get a bit boring, but its main power is in the workshop - practically unlimited amount of scenarios including mutating lizards into dragons, turning people into werewolfs or psycopaths, turning cute cats into mass murderers or taking control over fridges, cars and TVs with a computer virus.