The long night

The sun still rises, but humanity no longer owns the night. Three days after being bitten, you become one of the creatures hunting those who remain. The world has fallen into darkness. Nobody knows where the Night Creatures came from—an experiment, a disease, or something supernatural—but humanity has learned to survive behind fortified walls. During the day, life almost feels normal. At night, the gates close, the UV lights come on, and everyone waits for morning.