I’ve posted occasionally about many things zombie. In honor of Halloween, I’ll link to a great post covering a ton of different zombie games that first appears in mid-august on metafilter. In case you haven’t seen it, and like me you have an interest in zombie games, check out the list and discussion thread on metafilter, then get busy with some zombie bashing action.
Note that many of these are flash or otherwise browser-based and thus available to any platform that can run flash and a recent vintage browser with competent JS support. Many are also PC specific, but the central point is that one should be able to find a zombie game that both appeals and that can run on your machine from this extensive list.