Every bloodthirsty Mac users really owes it to him(or her)self to check out the latest on-line, multiplayer, bloodfest to come to the Mac platform: Rune. Created by HumanHead Studios and ported to the Mac by Westlake Interactive this "over-the-shoulder" perspective slasher uses the Unreal Tournament engine for a pretty incredible gameplay experience. Quite a memory hog though -- most users will need to turn on VM to get this one going. At any rate, hit the site and snag the demo. Great stuff -- this one's kept us pretty engaged, here at Macrumors.