After a new virus hit humanity, dark times came. Most of the population was turned into bloodthirsty monsters. All attempts to find a vaccine have been unsuccessful. The surviving people have already come to terms with their death, but a new monster was found, whose blood could heal this disease and save the remaining people. You are sent to search for this rare monster. You arrived in the destroyed city, where you saw it, but it turned out that this city is teeming with hordes of monsters. You need to kill all the monsters so that no one interferes with your search.