drakehamby1416,
On behalf of Tom's Moderator Team, welcome aboard!
Tom's has a Guide located in the "Stickies" near the top of the CPU's Forum:
Intel Temperature Guide -
http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html
You might want to give it a read.
Just to quickly put Core temperatures into perspective, and to set your mind at ease, Intel's specification for "Throttle" temperature for the i7 8700K is 100°C (212°F) -
https://ark.intel.com/products/126684/Intel-Core-i7-8700K-Processor-12M-Cache-up-to-4_70-GHz
100°C is the Core temperature
limit at which the processor will Throttle (reduce Core speed and voltage) to protect against thermal damage.
Nevertheless, it’s not advisable to run your CPU near it's thermal limit, just as common sense tells you not to run a vehicle with the temperature gauge pegged in the red. If your hottest Core is near it's specified Tj Max Throttle temperature, then your CPU is already too hot.

The consensus among well informed and highly experienced system builders, reviewers and overclockers, is that cooler is better for ultimate stability, performance and longevity. Experts all agree that it's prudent to observe a reasonable thermal margin below Tj Max. So regardless of environmental conditions, hardware configurations, workloads or any other variables,
Core temperatures above 85°C are not recommended.
Here's the nominal operating range for Core temperature:
Core temperatures below 80°C are ideal.
Core temperatures increase and decrease with ambient (room)
temperature. Standard or "normal" is 22°C or 72°F.
Core temperatures can vary greatly among gaming titles due to differences between CPU and GPU workloads. However, as gaming is generally a moderate load, your gaming temperature is fine.
Once again, welcome aboard!
CT
