The fact that I was playing a game was irrelevant; I was trying to find out if my temperatures were too high overall. I got my answer to that question: they are not too high.
Also, considering that I won't ever be doing anything on this machine that pushes it to 100% load, finding out how hot it runs at 100% is irrelevant. Finding out if, while playing a game, it runs too hot, is relevant, and again I got an satisfactory answer in that regard.
Thanks, but telling me how wrong I'm doing this is not helping.