How do I disable supernatural?

You can set the moon to any other phase so they wont spawn, and also in the options there is a way to stop other supernaturals.

If you go into your options, you'll have an "Advanced Demographics" tab that allows you to allow/disallow certain sim types:

https://i.imgur.com/gNGGc3t.png

Also, your lunar phase is in Options under the Seasons tab. You can set your lunar phase to a fixed, non-full phase to avoid full moon shenanigans.

I'm pretty sure this will apply across ALL saves though. I don't know away to enable/disable supernatural sims on a town-by-town basis without mods.

I used this when I had Supernatural installed. This mod with the selections unchecked as posted by vexingquery should do it. Unfortunately sim game selector does not work with Steam. :cry:

https://modthesims.info/d/486695/no-more-zombies-generated-at-full-moon-2-flavors.html

I have found that some options, and I don't know which ones, are save (or maybe world) specific. So I always check my options if it's important to me. I've noticed this because most of my saves have multiple worlds in them and I sometimes wonder why things are happening that I thought I'd turned off but when I travel to a different world in the same save they are on again. But revert to being turned off when my sims return to the original world.

Disabling all of the occult types will stop the game turning your townies into supernaturals, but if you already have supernaturals in that world it is possible some of them might turn others to their occult state. I have had this happen only once that I know of, and it was in Moonlight Falls which is the world that came with Supernatural. One of my sims got turned into a vampire when I changed households for a short time. I cured her easily enough, so it wasn't a huge problem but it did make me wonder how it happened. I finally worked out one of the vampires that came with the world must have done it to her. If it had happened to a townie that I wasn't playing at all then I probably would have never noticed.

I don't tend to worry about the zombies so haven't changed the phase of the moon but that is the only way I know of that will keep zombies away. They only arrive when it's a full moon.

I hope you are able to find a solution that suits you.

@SeashoreLivia,
Disabling Supernatural is easy. Just shut off all of the occults in the story progression options and set the lunar cycle to a single phase besides the full moon, or disable Supernatural entirely via the game launcher every single time you plan on playing with one of your realistic saves. If you choose the latter option, you won’t be able to use any supernatural content in those saves, and some of it is stuff that pretty much does exist in the real world. I’m guessing The Steam version also includes the game launcher? Please let me know if I’m wrong. I’ve never played the Steam version of the Sims 3

Keep in mind through you won’t be able to disable certain occults that come with other expansion packs, such as the mermaids and aliens without the use of mods. That said, those creatures don’t seem to reproduce much even when story progression is on.

@Damienf519 The beauty of Steam is you don't have to use the launcher. You can, but you don't have to. It's still on the 1.67 patch so you can boot from the TS3W.exe file, which 1.69 took away.

Thanks for all the tips!

@SeashoreLivia,
You’re welcome. Glad we could help

Oh my gosh @ZeeGee thank you for sharing that mod that I forgot existed! :grin: :kissing_heart:

I've been using my own version of a pack selector with my Steam install: I delete the registry entries for the packs I don't want loading. (The pack selector does the same thing, but it doesn't recognize the Steam registry entries; that's where I got the idea.) I saved the two relevant sections of the registry before I ever did this, and when I want my packs to load again, I restore those sections, which is as simple as double-clicking a couple of files I have sitting in Documents.

I did not save the entire registry, I mean I did but I don't restore it, since that would revert any changes made for other apps as well. And I wouldn't recommend this for someone who's not comfortable with the possibility of breaking stuff. But it is a lot easier than constantly uninstalling and reinstalling the packs, which would involve cleaning the registry anyway.