I try to play Story mode, but it CRASHES MY COMPUTER. Literally. My entire PC shuts down. I have great specs and have never had such an issue with any game before.
As soon as I start digging around the ship to find the herbs juice, my PC fans go crazy and my PC shuts down.
What am I doing wrong? Is story mode broken or something?
The fact that fans go crazy would seem to indicate some sort of "busy loop" (either CPU or GPU or both), which quite typically leads to heating. The fact that PC shuts down (and not just bluescreens/such) might in turn indicate the system detected overheating and as a safety measure turns off.
Now, the reason for such busy loop is of course a programming issue, but the possible overheating/shut down is an issue in the hardware: inadequate cooling or something wrong with it.
Of course, could be something else, too, like heavy load on GPU causing too high power drain and PSU fails to provide stable voltages, etc., whatever, yadayada.. But the first thing I would check is the GPU/CPU temperatures under heavy stress, and I mean heavy stress, not just a standard game, but with some of those programs meant for "burn testing". Just in case.