What makes this relevant to me, is that one of those creatures will be zombies :-)
Zombies who can infect other sims through biting them;-)
Now how much fun would it be, to create a new world in sims, and fill it with zombies, with only a few humans (aka versions of the cast of TWD) left to try and survive and not get bitten amongst them :-) )
My only regret is that the game won't allow for baby or toddler zombies, but still zombies :-)