You mean to say that "There is no crash -- I abort the process?" Even if that's the case, there might well be console output that could indicate why the problem gets worse over time. Though, I have to admit, having performance range from 0 to 30 is itself circumspect, as the game tends to hit a specific mark and stay there -- even if it doesn't feel that way (for example, when the game was low-performing on my system, it remained around 15 - 18 fps).I'm not at all complaining, just saying that since I bought this game (on desura, it was maybe 2.9.9.10?) performance has just been getting worse and worse and slowly made me not play at all, absolutely no enjoyment, just coding some stuff here and there. I know it's not your fault and performance has improved to a lot of people, but for me, it just didn't work out ^^. have you tried to change the resolution? with my old cpu that has helped I get 60fps-ish with an Intel Pentium D 3.0GHz when my res is 800x600, if turn it up past that I lag too hard to play. mind your system specifications bro, the older your parts the lower you're gunna have to set settings for newer games (even though this game may have what seems like an extremely outdated rendering system, the devs probably built it on the newest, or close to newest hardware out there, meaning they have a lot more room for processing, making it impossible to run on any non dual core processor. If you do change the res the only difference is things are "zoomed in" and the MASSIVE performance increase. hope this fixes your problem and/or helps you understand why things like this occur. Cheers mate, -Naylo