Laptop stopped working? - 1

Me and my friend have just developed a game in Unity and Blender, and we were playing SCP Secret Laboratory but my laptop just didn't have enough power for that, but it worked, it was only tagged a little but then suddenly the computer went off, and it was very hot downstairs. Then it didn't work for a while but when it came on the screen didn't work.

What should I do now?

Overload of the graphics card?