MMGN.com: "It's a seemingly simple experience, but one which has players coming back for more. The figures speak for themselves: over two and a half million people have registered since Minecraft's humble beginning in May 2009. With a free-to-play version along with the full game, it boasts a sales-conversion rate of over 30% - meaning over 800,000 sales in little over a year and a half. Not too shabby for a game which is only rolling out beta updates as you read. But what is it that keeps people coming back for more?"