State of Decay surpasses 2M copies sold with no marketing

It turns out that you may not need commercials when you have zombies on your side.

Developer Undead Labs revealed today that its zombie-survival sim State of Decay has surpassed 2 million copies sold on Xbox 360 and Steam. The game reached this milestone despite a complete lack of official advertising. Instead, Undead Labs credits its fans for the success. In a blog on its website, the studio claims that people livestreaming the game helped spread the word and turned the small release into a bit hit. This shows the power of video platforms like livestreaming site Twitch and gameplay videos on YouTube. Those tools can help a game quietly go from quiet Xbox Live Arcade release to blockbuster hit.