This guide will let you know how to kill a Sim instantly with the help of a cheat. You have to always type in “testingcheats true” before using a Sims 4 cheat.
To open the cheat box, you will need to press “ctrl +shift + c” or “command +shift + c”.
And then type-in “testingcheats true”.
After that, you will need to type or paste in “sims.add_buff buff_death_elderexhaustion_warning “.
The sim will die after a few seconds because of over-exertion.
You can also use other cheats to kill a Sim; just open the following link to get more cheats.