http://bloody-disgusting.com/news/3269532/88000-people-played-the-dayz-alpha-in-first-12-hours/
The long awaited public alpha for the DayZ standalone — available now — sold 172,500 copies in just 24 hours and was played by nearly 90,000 players in the first 12 hours of its going live on Steam, developer Bohemia Interactive announced today. Those are some mighty impressive numbers, especially for a game that isn’t even finished yet. If you haven’t grabbed your own copy, you can find it on Steam Early Access for $29.99.
Just remember that it’s far from finished.