The game works just fine - for about 20-40 minutes, and then it crashes.
My drivers are all up to date, windows is all up to date, my system is perfectly capable of handling the game - as evidenced by the fact that it all works just fine for a while. Sometimes just before it crashes it gives signs of being out of memory, as if there was a memory leak.
This is frustrating. It is like having a demo of a game I paid full price for.