Hi everyone, For what it's worth, I'm on a 2007 MBP running Mavericks, 4gb ram, 256mb Nvidia 8600 and I can run this latest build at around 15-20fps going down to 10-12 when raining or running, at max res with everything up full. If I knock the res down to 1280 instead of 1440, I can get 30fps. Cheers!