DayZ

In a random youtube look up I came across a channel that had a list of video's where two guys were playing a mod for ARMA 2 (http://dayzmod.com/). It's a zombie Apocalypse/survival game.

What interested me while watching was that the players could hear each other once they were within a certain distance. That kind of interaction hasn't been done, not that I've seen anyway.

I've since learned that there were many other "episodes" of the lads gaming through this mod.
Tho I can't find the vids I had watched they were similar to these:
http://www.youtube.com/watch?v=_WUG1X62LnI
&
http://www.youtube.com/watch?v=kfAMZH0rEvQ


I've also leaned that the mod has since developed into a full game:
http://en.wikipedia.org/wiki/DayZ_%28video_game%29