The PC and Mac versions of the multi-player online video game "Minecraft" are available for purchase and download on the "Minecraft" website. The Xbox version is available on the XBLA marketplace, the Windows edition is available in the Microsoft Store and the "Pocket Edition" is available for iOS and Android.
The only way that "Minecraft" can be blocked on a traditional Internet server is if a computer administrator blocks the website itself or disallows downloading entirely. Many parental controls operate in this fashion, and can only be overridden with administrative permission. As of 2016, "Minecraft" is the best-selling PC game of all time with over 70 million purchases and downloads.