While playing the Sims 4, my PC will suddenly shut off.

I've been keeping a good eye on the temperature of my laptop and making sure my laptop is on it's charger when I try to play the Sims 4, but my laptop still shuts off when I try to play. I turned it on this morning and turned on the game, but before I even got to the title screen on the Sims 4, my laptop turned on. I felt the bottom to see if it was hot and it wasn't. My laptop was still on it's charger too. Does anyone know why this is happening? Also, it only happens when I try to play the Sims 4. Please help!