Mojang 2012, Mojang was co-developing a video game codenamed "Rex Kwon Do" alongside an undisclosed developer. Before the title had reached a significant stage of development, Mojang cancelled the collaboration, due to their lack of involvement and influence on the project. In March 2012, Persson revealed that he would be designing a space sandbox game. Although Mojang teased with an April Fools' Day website based around "Mars Effect" (citing the Bethesda lawsuit), it was confirmed that the game was indeed in development, albeit with a different name. On 4 April, Mojang revealed the game's title to be "0x10", set in the
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