[narkotic]

Aye, marcoR is correct. You might have had too many things plugged into your outlet or, your power supply wasn't of very high quality. Typically those are the first to go, so if your computer doesn't turn on at all (no lights when you hit the power button) then that's what you need to replace.

The rest of your equipment should be fine. It will also make a strange smell. Burning up a CPU would only make the smell, no noises.

A computer game would never cause computer equipment failure. Well, the only one I could think of is your video card overheating, but Graal doesn't have anywhere near the performance hit to cause anything like that.