Minecraft of the alpha version of the game expanded. Persson continued to update the game with releases distributed to users automatically. These updates included new items, new blocks, new mobs, survival mode, and changes to the game's behavior (e.g. how water flows). To back the development of "Minecraft", Persson set up a video game company, Mojang, with the money earned from the game. On 11 December 2010, Persson announced that "Minecraft" was entering its beta testing phase on 20 December 2010. He further stated that bug fixes and all updates leading up to and including the release would still be free.
Minecraft 16 August 2011, "Minecraft: Pocket Edition" was released for the Xperia Play on the Android Market as an early alpha version. It was then released for several other compatible devices on 8 October 2011. An iOS version of "Minecraft" was released on 17 November 2011. A port was made available for Windows Phones shortly after Microsoft acquired Mojang. The port concentrates on the creative building and the primitive survival aspect of the game, and does not contain all the features of the PC release. On his Twitter account, Jens Bergensten said that the "Pocket Edition" of "Minecraft" is written in