Full spec please with the brand name on each component. Case and number of fans used on the case.
If you pc shut’s off you have 100% a hardware issue or thermal problem, a game cannot be the issue for force shutdown. Dosen’t matter that other games dosent give you this problem but for sure you have one there pal.
Install hardware monitor and keep an eye on the temps. The game in 4K on my sistem take 350W Ryzen 3700X + 2080 Supe + Seasonic PSU 550W, on FHD gos with 170W… this power it’s measured on the wall so because of the PSU that is gold and deliver 90% efficiency you will lose 10% off the wattage mesured and thats the real consumption of the inside compoenents…
I think you have a PSU problem or high temperature hardware (CPU or GPU). Usual force shutdown occur only when thermal protection hit… that could be on CPU GPU or PSU and rare on motherboard chipset, mostly caused by the dust and old thermal paste that is solid now most of the time so do a full clean of your pc and install new paste on CPU and GPU if you have higher temps on them. I recomand Artic Silver MX4.
But the comon problem its that nobody care about their own pc and never clean the dust from CPU an inside componentes, that’s killing them.
You need to install Prime95 and run the the heaviest test “In place large FFT” for about 1h for start the if it dosent crash in paralel Furmark and run it them both for maximum power consumption and if it’s crashing then you have a GPU or PSU problem… your pc will crash 100% after a while if i’m corect but you neet to keep an eye on the temps to identify the problem. If all temps are normal the the PSU it’s the problem.
Later Edit: take out 40W from my power consumtions because that’s the total power consumption with the monitor.