Some laptops are notorious for overheating. If you are going to be on for a few hours gaming and are concerned, I’d invest in a cooling pad. You can pick those up fairly cheap and they provide better air circulation due to the additional fans and raised platform. In my opinion, if laptops have the intake fan on the bottom, you need more clearance from the surface it rests on. My Acer does the same if I am gaming for 3 hours or more. The cooling pad made a difference.