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

Hello! There is a simple solution to this problem. The Sims 4 is of comparison to the Sims 3, which means they both hog up frames to provide a sufficient game play. This process overworks your graphic card and can also cause damage. When the graphic card is overrun, your computer shuts off to prevent further damage. What you need to do to solve this issue is to simply enable vsync settings. I myself use Intel core HD graphics. If you're a nvidia user, you can just google up how to enable vsync for it. To enable Intel vsync, I press CTRL ALT F12 and it brings up the Intel screen. You find the 3D category and click on it. Look down and find "vertical sync." once found, click "on." This makes it so that vertical sync is enabled and uses the default settings of maximum frame rates. When application settings is enabled, the frame rates are controlled based on the games settings. (Windows 8)