So far, on MM, I haven't had any lags or issues like crashing and so on.My PC configuration is 3GHz or processor, 4GB or Ram, 240 GTX graphics card etc.It can take all the top notch games pretty easy(Shogun 2, Napoleon Total War, Battlefield 3,MW3 etc.), and I'm more than sure that Napoleonic Wars will run as properly as MM did.