Yes ok I shall tell you how to get a Grim Reaper to move in to your family. In Sims 3 of course, duh. If you succeed doing it in real life please tell me how you did it.
There are a few other places online where you can search for how to move in the Grim Reaper. Some may be different from mine, some may be the same. Anyhow there are the guidelines.
NOTE: THE FIRST SECTION IS IF YOU DO NOT WISH TO USE ANY CHEATS. LOOK FURTHER DOWN FOR THE USE OF CHEATS.
Well ok here goes. Few simple steps.
1) Choose Friendly :chat.
2) Then Friendly: hug.
3) Then Special: charismatic: admire.
4) Lastly, Friendly: Ask to Move In
There are a few rules to take note of. First of all the Grim Reaper stays for only a short while (unless you get the neat freak Grim Reaper who will stay for a longer time if you have a spoilt sink around… more on that later). I don’t remember the exact amount of seconds he will stay for but it’s only a short time. So do this right!
After the ghost drifts away, the Grim will keep his scythe. During this point of time I suggest pausing, and playing, and pausing, and playing until he lands onto the floor. From then on you should have the option of talking to the Grim. Talk to him everytime he comes until he becomes your best friend.
Then Pause and do the steps above. 
Remember you only have a very short amount of time so don’t dilly-dally and do one step after another. Now here you may wonder how to get the Admire function. You can only have the choice if the character you are using has the Charismatic trait. And right after you choose to admire, you should do the pause play thing until the option to Ask to Move In is available.
YAAAY!!!! The Grim is now a part of your family! 
CHEATS ALERT!!!!!!!!!!!!!!!!!!!!
Well ok yes I certainly cheated! Who wouldn’t?
The main cheat code you should know is…
Type Ctrl+Shift+C and enter testingcheatsenabled true. This will allow you to use certain cheats. Now when the Grim Reaper is in your house killing your poor Sim, go to relationships and click your mouse on the bar for the Grim and drag it all the way to the end so you can become best friends. Next, if you don’t have a character with the Charisma Trait, Shift+Click on the particular envoy (sent to talk to the Grim) and choose to modify traits. You can always change it back.
It’s that easy.
Now let’s move on to the next section.
HOW TO ELECTROCUTE A SIMS 3 CHARACTER.
Note that you cannot kill a character with the unlucky trait. The Grim will always let the person live again. Oh unless the person dies of old age.
Now if you don’t want to cheat (all cheats help in the brackets), this is what you have to do. Create a character with a technophobe trait (alternatively you can use the same cheat as above to modify traits), and buy the lousiest television available. Stick that television somewhere, and get your technophobe Sim to sabotage it. Until it spoils, duh.
Then put a sink beside it, the lousiest one available. Get every family member to constantly use the sink until it spoils. It won’t take long usually. When the sink has spoilt and it’s spurting water, shift the spoilt television onto a wet puddle and have your poor victim stand on another puddle and on the television, then fix the television. It takes much faster if the person has poor handiness skill. Anyway, what happens is, your Sim will get electrocuted once. And he or she will look like they’ve just ran out of the catacombs. Ask the Sim to continue to repair the television. And then… the second time…

Your poor Sim dies. Well this picture is of my electrocution chamber. Everytime I want to electrocute someone they come to this toilet. C: Well it’s up to you if you want to keep the sink spurting and a spoilt television. I find it pretty handy.
(Now alternatively, if you want to use the cheat, my sister did it this way… she used testingcheatsenabled true and pulled the needs of her Sim all the way down… the need bar of BLADDER. Make sure you cancel their option of using the toilet. Well anyway they will pee on the spot and there you have a wet puddle right at your spoilt television, so you can skip the spoilt sink step. Wonderful, isn’t it? Albeit a bit gross.)
AND YES. YOU CAN KILL A GRIM REAPER. If you read my previous Sims 3 post (2 posts before this), you would have realised that my family has a Grim Reaper ghost. Well basically once the Grim Reaper moves in, he’s kind of like a normal Sim from then on. If you’ve killed enough people, you will realise that in the relationships tab, there are altogether 3 Grim Reapers. I don’t know what will happen if you move all three in. If you do find out, tell me.
Anyhow, my first Grim Reaper is a permanent member of the family now. The second… well. Got electrocuted. Here it is.

I killed Autumn Cusack and moved in the Grim and then electrocuted him. As you can see he has JET BLACK SKIN.
Don’t worry when he becomes a ghost he will revert back to wearing the Grim Reaper cloak. If that’s what you want. C: He looks like this in the end.

Anyway the last Grim Reaper came to “collect” him.
This is a very very interesting scene I wanted to share with you…
THE LAST GRIM IS A NEAT FREAK!

There you can see he has started to mop up the floor. Seriously… well I had a good laugh. I even took a video of it.
Anyway, I’ve got quite a few videos but my internet is freaking unstable now, and I really need to bathe so I shall post those up for the third post. And maybe do a tutorial on other methods of killing your Sims, aka fire, starvation, old age, drowning, etc. MUWAHAHAHHAH!

12 Comments
August 4, 2009 at 10:47 pm
LOL to your sis’s method of getting the puddle of water! Ok you made cheating seem so easy
August 5, 2009 at 5:26 pm
Hahahha indeed. My sister is very creative. Lol!
Cheating is easy! Not cheating is not.
August 17, 2009 at 10:20 am
Hi There –
TWO people have uploaded families with eight grim reapers. See link for the cute, individualized grim clothing options.
http://www.thesims3.com/search/householdSearch.html?&position=24&index=2
Also, I was wondering – if you have a grim reaper in your HH, does that make him in essence inactive as a grim reaper? In other words, if someone dies in another family during normal story progression, will your reaper suddenly get up and leave to “take care of business” ?
Also, are the Grims always males?
LOL – Just wondering! Very much enjoyed your Sims blog – keep em’ coming!
August 17, 2009 at 5:38 pm
Wow cool ok.
Yea from what I observe they do stop functioning as a proper grim reaper. Basically they act like normal Sims. And erm yes I think they are always male. Lol. Stereotypical.
Thanks! C:
August 15, 2009 at 2:59 am
This is really funny, I’m going to try it out. Thanks!
August 15, 2009 at 5:36 pm
Lol sure thing. Start your own reaper family. Hahahha.
August 24, 2009 at 6:22 pm
i have tried that the grim reaper is already in my house but for a second he became invisible but i can control him….but i just can’t see him that’s the point…
August 25, 2009 at 9:32 pm
Oh ok… just use the cheat to teleport him away.
You know in my post I mentioned typing Ctrl+Shift+C, and then type into the text box testingcheatsenabled true.
Then shift+click some random spot and have the grim teleport there. He will be visible again.
September 7, 2009 at 5:15 pm
Does the grim reaper age after he moves in? Because i don’t want him to!
September 8, 2009 at 10:59 pm
I think.. as I mentioned above.. that he will function as a normal Sim once he is in your family. Therefore if you don’t have anti-ageing turned on then yes I think he might…
October 1, 2009 at 4:53 pm
Yu can edit de Grim reaper outfit! Click on a dresser while controlling Grimmy, den click his outfit tice and change the pattern/colour!!!! My grim reaper has a pink cloak with flowers on it
. And while ur planning his outfit, u can also click on ‘formalwear’ to see wat he looks like. Hes like de opposite 2 an albino lol. And if u haff a kid with him den de kid will sumtimes have de same skin as him!!!!!!!!!!!!!!!
October 7, 2009 at 1:10 am
Lol! That’s cute! C:
I do like him in his black robes though. Are we able to have him in a robe for every single type of outfit? Just different patterning of course.