Laptop overheating when playing Orion: Prelude

My laptop has been running smoothly for the most part, and I've owned it for about a year. It kinda heats up when I play graphics-heavy games like Skyrim, but it never gets too hot. However, it's different for Orion: Prelude.
When I play Orion: Prelude, my laptop heats up to incredibly high temperatures. Or at least, it feels very hot. So much so, that it makes me really nervous. Not only that, but it's very loud. It sounds like the internal fan is going into overdrive. Like the thing's about to blow up or something. Using GPU-Z, I check the temperatures of my graphics cards. My Intel 4600 is at 70 degrees celsius, while my NVIDIA is around 55 degrees celsius or something like that.
And here is where I get incredibly confused. Why is the Intel card heating up so much more than the NVIDIA card? I made sure my games run using the NVIDIA card, and not the Intel. And why is it only happening with Orion: Prelude? I messed around with the in-game settings, lowering the quality and stuff, but that didn't do anything.
It can't be my specs, can it? I checked the system requirements for the game, and my computer checks out.
These are the requirements for the game:

Here are my specs:

My laptop is a Lenovo Y50 and my OS is Windows 8.1 64-bit, and I am using NVIDIA GeForce GTX 860M. I've only had this laptop for about a year.
I should also mention that I got my computer cleaned out on Monday. Well, I say "cleaned out" but the man at the store said it was really clean on the inside. He even opened it up and went over it just to be sure. I keep my computer in a very clean environment. If there was something wrong with the fans or the thermal paste, he would have said something, right?
Any help would be greatly appreciated.

 

Well let me explain some things.
1 - your iGPU is heating up because your iGPU is your display card. End of story. The nVidia card is a "number cruncher". The data still has to pass through the iGPU, and thus the iGPU does work. Intel chips get much hotter than nVidia chips for the most part, so yes, you would notice it getting rather hot.
2 - Your lenovo Y50 doesn't have amazing cooling at all. It's okay for some instances, but certain games (likely as you've just found) would murder it because of how much they heat up the components. Some games just overheat cards, and other games just use them coolly. It depends on how they use the system. In other words, what's happening here is "normal"
3 - If lowering settings doesn't work, have you checked the FPS it's running at? Maybe it's unlocked and it's hitting very high numbers? Or maybe it has no graphics options reducing the CPU load and even at minimum settings it's hurting your CPU greatly?

 

I see... So it might just be that I need to buy some accessories then.

I tried running the game again. I noticed there was a Vertical Sync option. I recall that vertical sync is able to force the game to run at a specific FPS. However, looking through the controls, I didn't see any way to display the FPS in the game. But I am sure that it's the game that's the problem. Using vertical sync didn't seem to do anything.
Actually, what's really weird is that just by being on the menu the computer starts making more noise. The menu didn't really have that much stuff on it that seemed like it would be demanding resources.

 

What temp is your CPU? Is the GPU hot simply due to CPU temp?

 

Double post

 

70C is far from hot, don't worry.

 

Okay, well... I guess Vertical Sync did work. I guess I had to close the game and start it again after enabling it. Now when I play, the computer is strangely quiet. Like, too quiet. Not that I'm complaining. The game plays just fine. So I guess I got it sorted out now. Thanks for your help, guys.