I’ve been meaning to post this for some time and with all the new players some else may experience a similar situation.
I would play the game on my Dell Latitude (Win7 32Bit) laptop for 30 minutes to a couple of hours, when the laptop would just shut off. No warning or any indication of a problem. As this game is very CPU intensive and it was fairly warm at the time.
Around the third time it did it, I suspected the CPU maybe was over-heating. Upon flipping the laptop over and inspecting the fan exhaust vents, I noted it was fairly packed with dust. I vacuumed out the vents & fan and have not had a problem since.