From the site:

"As expected, EA went a bit nutz with the zombies in Supernatural.
With default settings being 40% chance 3 zombies will spawn every 90 minutes, the town quickly gets overrun!"

Yeah, no kidding! This mod is designed to control that zombie population, from no zombies at all, to a 25% chance of one every hour, to 100% of one every hour. Ahhhh! Much better!

You can only have one, so choose your flavor.

Site Simscrossing
Categories Game Mods
Direct Link http://www.simscrossing.net/smf/index.php?PHPSESSID=64a6c31e17846af3e2c0d6bc3fbcdc16&topic=898