As part of this feature, you'll now be able to manage two different kinds of population in your town. Your town has the original population and its maximum population, and it then has a "Monster Population" meter, that starts at 200 monsters. You'll be able to increase the amount of Monsters living in your town by purchasing Monster-themed houses, and can increase your Monster population cap by purchasing Monster-themed Community Buildings. Here's a closer look.
First things first, the game's user interface has been updated in the orange, black and purple color palette, and you'll be able to track your two levels of population in the bottom left-hand corner, as usual.
While the game's store technically looks the same, and your city can look the same as well (simply with themed buildings being added), you can also purchase a "Halloween Theme" for your entire city. This will change the land's color, roads, etc. to a dark navy blue color. Here's a comparison of my own town, for your reference. Unfortunately, this doesn't change the way the game's buildings look (like the snow and Christmas lights changed things back in December of last year), but it does set the stage for items you can purchase in the store.
All in all, I'm expecting the game's Halloween theme to expand a bit before the holiday proper, as there is currently a lack of themed Businesses, which is surprising. Still, there are plenty of items here to get you started, along with a slew of goals that we will bring you a complete guide to as soon as possible.
Check out the rest of our Halloween 2011 coverage right here.
What do you think of these Halloween-themed homes and items in CityVille? Are you going to make your city a haven for all kinds of monsters? Sound off in the comments.