well going off of the steam survey (its the best we'v got tbh) 4 cores at over 50% now 2 cores at 43% though which means theres a hell of a lot of very crappy pc's out there still. i know a lot of variables when it comes to steam but you'd hope devs would be looking at least utilising more cores now, even just 2 is a nice jump over just maxing one out.