Check it out http://www.pcgamer.com/2013/07/25/dayz-arma-3-the-reason-you-should-play-the-dayz-mod-again/
Keets? 
Looks interesting. Have you checked out how to install it?
Haven’t done it yet here it is: http://www.dayztv.com/tutorials/dayz-zoombies-mod-dayz-on-arma-3-release-how-to-install/
I just Installed and it was very easy I did not find any Servers running Day Z and I read this on the Install Instructions “If you get “bad version”
Make sure to install the latest dev version of Arma3. To do that right click on Arma3 in steam, click settings, go to the “betas” tab and select Dev build in the dropdown menu” When I did that it asks for a Code which of course I dont have? 