RIZN is a third person zombie shooter and survival game in which the player starts off already infected and must fight to find a cure.
Here's the result of progress I've made on a real-time occlusion culling system for zombies. I have a large white sphere standing in for an undead character at the moment, but the concept will translate well. The goal here is to prevent hundreds of zombies that are behind a quarantine wall or structure from being sent for rendering, increasing performance substantially and lowering the system requirements.