Author Dayz Standalone, Dean Rocket Hall says that the first game is a mod for Arma 2 will be able to do an alpha test in July 2013.
via N4G: pc news feed http://n4g.com/news/1216273/dayz-standalone-will-do-alpha-test
via N4G: pc news feed http://n4g.com/news/1216273/dayz-standalone-will-do-alpha-test