Eternal Winter Apocalypse

Eternal winter has enveloped this world for about twenty years. No living creature will ever see sunlight again. However, severe frosts and food shortages are not the only threat. As a result of the catastrophe, the world has become filled with the living dead. For some reason, the cold is no problem for them, they are eager to find and destroy all living things. Infection threatens you too. Good luck surviving in these terrible conditions!