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 "FortressCraft", "Terraria", and "Total Miner". David Frampton, designer of "The Blockheads", reported that one failure of his 2D game was the "low resolution pixel art" that too closely resembled the art in "Minecraft" which resulted in "some resistance" from fans. A homebrew adaptation of the alpha version of "Minecraft" for the Nintendo DS, titled "DScraft", has been released; it has been noted for its similarity to the original game considering the technical limitations of the system. In response to Microsoft's acquisition of Mojang and their "Minecraft" IP, various developers announced even further clone titles that were being developed specifically for