Yeah, if your computer is rebooting/BSOD’ing, I’d recommend checking your hardware.
First things first, make sure that your computer isn’t set to restart after system failures. This will give you time to see the BSOD error code if there is one. You can find directions here. If you do get a BSOD, write down the error, as that can help point us in the right direction.
If you don’t know where to begin, you can:
Make sure that all your drivers are up to date (do not use a driver updater. Manually install drivers from the computer manufacturer or individual hardware manufacturer websites.)
It just might be time for a new computer. This ONLY happens on this game and when I play Civ5. But my internet connects seems to go and come back randomly.
Turns out my computer was overheating. Turned down the graphics and it seems to be better, my ship looks crappy though. Hopefully I can find a middle setting that works.
The temp was shooting up from 61C to like 98C in a couple minutes.
Okay, use compressed air to blow out the fans and heatsinks. Note that depending on design, you may need to separate heatsink fans from heatsinks to be able to properly blow out all the dust.
If you feel comfortable doing it, you can replace the thermal paste that is in between the heatsink and CPU/GPU/APU. Thermal paste can dry out over time and lose it’s thermal conductivity. There are general tutorial videos on how to do this, and it’s not very hard. As for cleaning off the old thermal paste, you can use thermal paste remover, or 90% or better isopropyl alcohol. Of course, the latter might be more difficult to come by nowadays.
Anyway, doing that will help your computer to better cool itself, which will hopefully allow you to turn your graphics settings back up.