BuyZombie.com. Please check out the final draft of the review here.
Regular readers will remember that the first game review I did for Buy Zombie was Mall of Horror. I recall having positive things to say about it. It was fun and strategic, though somewhat friendship-destroying. City of Horror is the... well, I'm not sure what to call it. It's its own game, so it's not an expansion or reprinting. Is it a sequel? Can board games even have sequels? The website boardgamegeek.com classifies it as a "reimplementation". I suppose that works better than anything I can think of.
Whatever it is, it takes the rules of Mall of Horror and then refines them, expands on them, and tweaks them in a few areas. This creates an experience that if you've played Mall of Horror will feel familiar, yet wholly distinct. If you've never played Mall of Horror, but you think you'd enjoy the kind of game where you feed your friends to zombies for fun and profit, then you're in for a special treat.