PC crash and restart while playing

The idea that the game damaged your system is a faulty idea.  You bought a new system and something was wrong with the hardware out of the box, this game was just the one you played that maybe stressed the components enough for the issue to show.  The second PC is also the same issue.  Does this mean you are unlucky....yes, or the quality of the PCs you are buying is crap.  I have seen WAY too many "new" things that don't work right out of the box, especially since Covid, but even before that it was happening more than it should.   Computers are designed, with many safeguards to prevent programs from being able to harm them, and games can't do things to thermal limits, or voltages.  If a game is causing your PC to shut down, then it is simply showing up a hardware issue, not causing the issue to begin with.  The very fact that other games started having issues proves this point....it was just an issue getting worse the longer time went on.  Be prepared for your new PC to have this issue again when stressed with more games or time.

Now if you go back a few years and there were reports of a certain game nuking Nvidia Cards, it turned out to be a manufacturing issue with faulty parts, and the game was just putting enough stress on the card to cause it to show.  It is almost impossible for a game to cause physical damage to a card without some sort of outside force, such as user removing limits.  I know this game didn't sell super well, but there was enough people playing this game that IF it was somehow bricking computers, it would have been well published on this or other forums, and not be one or two posts here or there.