Not yet optimized for Mac
The game itself is great, but its performance is so poor it barely runs on high-end iMacs and MacBook Pros - periodic slowdowns, crashes, memory leaks, and it's crazy that Intel HD 4000 graphics is not supported considering it drives much more sophisticated games just fine. Given the simplicity of CK2's graphics and interface, it shoud perform several orders of magnitude better.
by sss4r, - Oct 1st 2012