I don't know if this will help anyone but hey, if it helps even just one person then I guess it's worth it. So my game would freeze entirely and then crash to desktop after about 10-15 minutes of play (sometimes less). I used a free program called Speedfan to check my system's performance and temperatures...I did this to see if the game had a memory leak or if anything was overheating. I logged in, loaded up the game and saw that my GPU was seeing temperatures well past 75c and that was with me sitting still at the main player hub (the tower...thing). There were no explosions and there weren't that many running around me...and the temperature for the GPU just shot up FAST. In my settings I had my FPS cap set to "unlimited" (due to my PC being fairly beefy and capable of running the game on ultra with 60 fps easily). I thought that perhaps this had something to do with the GPU going nuts so I capped the FPS at 60fps. Doing this has kept the GPU from overheating and the game hasn't crashed once since I made that change. Give it a try. If nothing else you can check your system's temperatures to make sure you're not frying anything. :P