Natural Selection 2
Spark engine has stopped working?
after a while i did came back because this game was always crashing ending up in that bug report screen (and weird trippy colers until i closed that.) but after several months ( just about an hour ago) i reinstalled it. to try it works now. i did start it . and the screen is black over 5 minutes. i pressed alt tab what was cauising it and it said: spark engine doesnt reacted. followd up by has stopped working.

any ideas that caused it?

sorry for my lack of english.