zombie survival game, 7 Days to Die, cross-platform, cooperative play, Xbox One, PC, post-apocalyptic environment, abandoned buildings, crafting system, day-night cycle, hordes of zombies, multiplayer strategy, survival skills, resource gathering, fortification building, realistic textures, atmospheric lighting, dynamic weather, first-person perspective, immersive gameplay experience, detailed character models, ragdoll physics, voxel-based terrain.