Any "evil" things I can do in this game?

You could decorate their lawn with dog poop, or plant trash plants. Also, invite them over for fruitcake if they don't like it. Or gift them some badly cooked pufferfish dish. You could also try kick over their trashcan. Plant bugs on them and learn their secrets and blackmail them. Gift them death flower scented bouquets.

If any of the evil sims have the goofball trait they should be able to prank your sims toilet ( or their own….lol). I hate the goofball trait now because I have to watch any sims with that trait now that they have added that to those who have the goofball trait ( unless the have changed it again in the last few months.

Sims can fight other sims ( but elders can die after fighting ). I think that’s under mischief).

Sims can insult other sims ( I believe that is under mischief )

Good sims don’t like being around evil or mean sims ( not sure if it is good vs. mean though or good vs. evil as I have 2 brothers …. One has the good and a sad trait and the other has both a mean and evil trait. The good brother gets sad when around the evil, mean brother ).

There is also a voodoo doll you can find in the game. I can’t remember if I found it fishing or digging rocks. If you have ‘get to work’. You can download one ( in a small room ) from the gallery and have someone selling it in a store so your sim can buy it. If you don’t have get to work ( or even if you do and don’t want to have to go through the process of having to buy it or find it ) you can just download the doll ( in a small room ) to the evil sims house and use it. I think you have to bind the doll to a certain sim you want to hurt I think ( you can read up on that ).

There are probably many other ways I can’t think of right now…..I don’t use mods either

If you want to kill a sim, there are many ways.
The first one I can think of is with a cow plant…. But most be packs have ways for sims to die.
Like crocobaura mentioned gifting puffer fish and death flower bouquets are a couple of them

Making them a bad quality pufferfish? Or is it too evil? They might die haha.
Also gifting a flower arrangement that was scented with a death flower will age up a sim. If they are an elder — they will also die. ?
Oh, and also you can train a dog so it will attack other sims.

"somewhsome;c-18148717" wrote:
Making them a bad quality pufferfish? Or is it too evil? They might die haha.
Also gifting a flower arrangement that was scented with a death flower will age up a sim. If they are an elder — they will also die. ?
Oh, and also you can train a dog so it will attack other sims.

I didn’t know about the dog training to attack sims, that’s a new one on me.

"SheriSim57;c-18148721" wrote:

"somewhsome;c-18148717" wrote:
Making them a bad quality pufferfish? Or is it too evil? They might die haha.
Also gifting a flower arrangement that was scented with a death flower will age up a sim. If they are an elder — they will also die. ?
Oh, and also you can train a dog so it will attack other sims.

I didn’t know about the dog training to attack sims, that’s a new one on me.

You need a high level pet training skill, I think. I've only discovered it recently. :)

Oh, this pet attacking stuff just reminded me, if you have seasons, you can have your evil sims buy a beehive and with a high relationship with their bee’s they can send them to attack people.

Give one of the neighbors the kleptomaniac trait (and skill up their mischief a bit), and there will be more than enough drama.

They can't really do much since especially in sims 4 they really neutered evil sims. They just make friends everywhere without issue because traits are meaningless in sims 4.

Putting a bee box out near the spot where Sims spawn onto the lot or by the front door is pretty wicked.

If you like to play with occults, you could give the evil neighbors supernatural abilities. Then you can orchestrate vampire break-ins, have a spellcaster come over and start setting things on fire, and/or have a werewolf come over and start devouring the good furniture! XD