Why do games crash ?

[Energize]

Programming incompetence probably.

 

[romperstomper]

But really, nTune (which adds into the nvidia control panel when installed) has some 'stability tests'
I haven't tried them but it does include the option to run a stability test on your gpu, as well as the rest of your system.

Yeah it passed that too but its not much of a test for a modern pc used less than 0.5 gb memory and 25% of my cpu its only tested in 2d too ,perhaps they wan't to make sure there cards all pass