Running things like FireStrike ion your computer is much like buying a new car, and taking it out on the highway, stomping on the gas pedal and driving it for 214 hours just to see if it will fail or not. Why do people do this to their computers but not their cars? FireStrike is designed to use nearly 100% of your CPU and GPU cycles, abd will generate more heat than any game will ever generate. So while 95c is too hot for normal usage, running FireStrike is not a normal program.
Since your system appears to have survived running FireStrike, you will be just fine playing real games. It would not hurt anything to remove the CPU cooler, and properly apply a quality thermal paste, and put things back together properly as well. But nothing is going to melt since it did not happen running FireStrike. The cooler you can keep the CPU, the longer it will last.