That would be really cool if it affected more game play.
I hated zombies in The Sims 3, but I did like the Lunar Cycle and the changes it created.


I don't know if it was me reading more into it, but at one time my sims did seem a bit loony.

Lenny is a werewolf and Xara autonomously started giving him belly rubs.

Zane and Sithia were not romantically involved but they started flirting with each other.

I wouldn't want this going on for the entire day, but perhaps from 9pm to 3am, sims start performing the more amusing actions and socials related to their traits as well as other amusing common socials.